EXHIBIT 10.4 FORM OF SUBSIDIARIES GUARANTY SUBSIDIARIES GUARANTY, dated as of September 24, 1999 (as amended, modified or supplemented from time to time, this "Guaranty"), made by each of the undersigned guarantors (each a "Guarantor," and together with any other entity that becomes a guarantor hereunder pursuant to Section 26 hereof, the "Guarantors"). Except as otherwise defined herein, capitalized terms used herein and defined in the Credit Agreement (as defined below) shall be used herein as therein defined. W I T N E S S E T H : WHEREAS, Information Holdings, Inc. ("Holdings"), Warburg, Pincus Information Ventures, Inc. ("WPIV" and together with Holdings, the "Parent Guarantors"), Information Ventures L.L.C. (the "Borrower"), the lenders from time to time party thereto (the "Lenders"), Bank of America, N.A., as Documentation Agent, and Bankers Trust Company, as Administrative Agent (together with any successor agent, the "Administrative Agent"), have entered into a Credit Agreement, dated as of September 24, 1999, providing for the making of Loans to, and the issuance of Letters of Credit for the account of, the Borrower as contemplated therein (as amended, modified as supplemented from time to time, the "Credit Agreement") (the Lenders, the Collateral Agent, the Documentation Agent and the Administrative Agent are herein called the "Lender Creditors"); WHEREAS, the Borrower may at any time and from time to time enter into one or more Interest Rate Protection Agreements or Other Hedging Agreements with one or more Lenders or any affiliate thereof, and provided that such Interest Rate Protection Agreement or Other Hedging Agreement constitutes a Guaranteed Obligation of the Borrower, (each such Lender or affiliate, even if the respective Lender subsequently ceases to be a Lender under the Credit Agreement for any reason, together with such Lender's or affiliate's successors and assigns, if any, collectively, the "Other Creditors," and together with the Lender Creditors, the "Secured Creditors"); WHEREAS, each Guarantor is a direct or indirect Subsidiary of the Borrower; WHEREAS, it is a condition to the making of Loans to, and the issuance of Letters of Credit for the account of, the Borrower under the Credit Agreement that each Guarantor shall have executed and delivered this Guaranty; and WHEREAS, each Guarantor will obtain benefits from the incurrence of Loans to, and the issuance of Letters of Credit for the account of, the Borrower under the Credit Agreement and the entering into by the Borrower of Interest Rate Protection Agreements or Other Hedging Agreements and, accordingly, desires to execute this Guaranty in order to satisfy the conditions described in the preceding paragraph; NOW, THEREFORE, in consideration of the foregoing and other benefits accruing to each Guarantor, the receipt and sufficiency of which are hereby acknowledged, each Guarantor hereby makes the following representations and warranties to the Secured Creditors and hereby covenants and agrees with each Secured Creditor as follows: 1. Each Guarantor, jointly and severally, irrevocably, absolutely and unconditionally guarantees: (i) to the Lender Creditors the full and prompt payment when due (whether at the stated maturity, by acceleration or otherwise) of (x) the principal of and interest on the Notes issued by, and the Loans made to, the Borrower under the Credit Agreement, and all reimbursement obligations and Unpaid Drawings with respect to Letters of Credit issued under the Credit Agreement and (y) all other obligations (including obligations which, but for the automatic stay under Section 362(a) of the Bankruptcy Code, would become due), liabilities and indebtedness owing by the Borrower to the Lender Creditors under the Credit Agreement or any other Credit Document to which the Borrower is a party (including, without limitation, indemnities, Fees and interest thereon), whether now existing or hereafter incurred under, arising out of or in connection with the Credit Agreement or any such other Credit Document and the due performance and compliance by the Borrower with all of the terms, conditions and agreements contained in the Credit Agreement and such other Credit Documents (all such principal, interest, liabilities, indebtedness and obligations being herein collectively called the "Credit Document Obligations"); and (ii) to each Other Creditor the full and prompt payment when due (whether at the stated maturity, by acceleration or otherwise) of all obligations (including obligations which, but for the automatic stay under Section 362(a) of the Bankruptcy Code, would become due), liabilities and indebtedness owing by the Borrower under any Interest Rate Protection Agreement or Other Hedging Agreement, but only if such Interest Rate Protection Agreement or Other Hedging Agreement constitutes a Guaranteed Obligation of the Borrower, whether now in existence or hereafter arising, and the due performance and compliance by the Borrower with all of the terms, conditions and agreements contained in the Interest Rate Protection Agreements or Other Hedging Agreements, but only if such Interest Rate Protection Agreement or Other Hedging Agreement constitutes a Guaranteed Obligation of the Borrower, (all such obligations, liabilities and indebtedness being herein collectively called the "Other Obligations," and together with the Credit Document Obligations, the "Guaranteed Obligations"). Each Guarantor understands, agrees and confirms that the Secured Creditors may enforce this Guaranty up to the full amount of the Guaranteed Obligations against such Guarantor without proceeding against any other Guarantor, the Borrower, against any security for the Guaranteed Obligations, or under any other guaranty covering all or a portion of the Guaranteed Obligations. 2. Additionally, each Guarantor, jointly and severally, unconditionally, absolutely and irrevocably, guarantees the payment of any and all Guaranteed Obligations whether or not due or payable by the Borrower upon the occurrence in respect of the Borrower of any of the events specified in Section 10.05 of the Credit Agreement, and unconditionally, absolutely and irrevocably, jointly and severally, promises to pay such Guaranteed Obligations to the Secured Creditors, or order, on demand, in legal tender of the United States. This Guaranty shall constitute a guaranty of payment, and not of collection. 2 3. The liability of each Guarantor hereunder is primary, absolute and unconditional and is exclusive and independent of any security for or other guaranty of the indebtedness of the Borrower whether executed by such Guarantor, any other Guarantor, any other guarantor or by any other party, and the liability of each Guarantor hereunder shall not be affected or impaired by any circumstance or occurrence whatsoever, including, without limitation: (a) any direction as to application of payment by the Borrower or by any other party, (b) any other continuing or other guaranty, undertaking or maximum liability of a guarantor or of any other party as to the Guaranteed Obligations, (c) any payment on or in reduction of any such other guaranty or undertaking (other than a payment in full in cash of all Guaranteed Obligations), (d) any dissolution, termination or increase, decrease or change in personnel by the Borrower, (e) any payment made to any Secured Creditor on the indebtedness which any Secured Creditor repays the Borrower pursuant to court order in any bankruptcy, reorganization, arrangement, moratorium or other debtor relief proceeding, and each Guarantor waives any right to the deferral or modification of its obligations hereunder by reason of any such proceeding, (f) any action or inaction by the Secured Creditors as contemplated in Section 6 hereof or (g) any invalidity, irregularity or unenforceability of all or any part of the Guaranteed Obligations or of any security therefor. 4. The obligations of each Guarantor hereunder are independent of the obligations of any other Guarantor, any other guarantor or the Borrower, and a separate action or actions may be brought and prosecuted against each Guarantor whether or not action is brought against any other Guarantor, any other guarantor or the Borrower and whether or not any other Guarantor, any other guarantor or the Borrower be joined in any such action or actions. Each Guarantor waives, to the fullest extent permitted by law, the benefits of any statute of limitations affecting its liability hereunder or the enforcement thereof. Any payment by the Borrower or other circumstance which operates to toll any statute of limitations as to the Borrower shall operate to toll the statute of limitations as to each Guarantor. 5. Each Guarantor hereby waives notice of acceptance of this Guaranty and notice of any liability to which it may apply, and waives promptness, diligence, presentment, demand of payment, protest, notice of dishonor or nonpayment of any such liabilities, suit or taking of other action by the Administrative Agent or any other Secured Creditor against, and any other notice to, any party liable thereon (including such Guarantor, any other Guarantor, any other guarantor, the Borrower). 6. Any Secured Creditor may at any time and from time to time without the consent of, or notice to, any Guarantor, without incurring responsibility to such Guarantor, without impairing or releasing the obligations of such Guarantor hereunder, upon or without any terms or conditions and in whole or in part: (a) change the manner, place or terms of payment of, and/or change or extend the time of payment of, renew, alter or increase, any of the Guaranteed Obligations (including any increase or decrease in the rate of interest thereon), any security therefor, or any liability incurred directly or indirectly in respect thereof, and the guaranty herein 3 made shall apply to the Guaranteed Obligations as so changed, extended, renewed or altered; (b) take and hold security for the payment of the Guaranteed Obligations and sell, exchange, release, surrender, impair, realize upon or otherwise deal with in any manner and in any order any property by whomsoever at any time pledged or mortgaged to secure, or howsoever securing, the Guaranteed Obligations or any liabilities (including any of those hereunder) incurred directly or indirectly in respect thereof or hereof, and/or any offset thereagainst; (c) exercise or refrain from exercising any rights against the Borrower, any other Credit Party, any Subsidiary thereof or otherwise act or refrain from acting; (d) release or substitute any one or more endorsers, Guarantors, other guarantors, the Borrower or other obligors; (e) settle or compromise any of the Guaranteed Obligations, any security therefor or any liability (including any of those hereunder) incurred directly or indirectly in respect thereof or hereof, and may subordinate the payment of all or any part thereof to the payment of any liability (whether due or not) of the Borrower to creditors of the Borrower other than the Secured Creditors; (f) apply any sums by whomsoever paid or howsoever realized to any liability or liabilities of the Borrower to the Secured Creditors regardless of what liabilities of the Borrower remain unpaid; (g) consent to or waive any breach of, or any act, omission or default under, any of the Interest Rate Protection Agreements or Other Hedging Agreements, the Credit Documents or any of the instruments or agreements referred to therein, or otherwise amend, modify or supplement any of the Interest Rate Protection Agreements or Other Hedging Agreements, the Credit Documents or any of such other instruments or agreements; (h) act or fail to act in any manner referred to in this Guaranty which may deprive such Guarantor of its right to subrogation against the Borrower to recover full indemnity for any payments made pursuant to this Guaranty, to the extent permitted by applicable law; and/or (i) take any other action which would, under otherwise applicable principles of common law, give rise to a legal or equitable discharge of such Guarantor from its liabilities under this Guaranty. 7. This Guaranty is a continuing one and all liabilities to which it applies or may apply under the terms hereof shall be conclusively presumed to have been created in reliance hereon. No failure or delay on the part of any Secured Creditor in exercising any right, 4 power or privilege hereunder shall operate as a waiver thereof, nor shall any single or partial exercise of any right, power or privilege hereunder preclude any other or further exercise thereof or the exercise of any other right, power or privilege. The rights and remedies herein expressly specified are cumulative and not exclusive of any rights or remedies which any Secured Creditor would otherwise have. No notice to or demand on any Guarantor in any case shall entitle such Guarantor to any other further notice or demand in similar or other circumstances or constitute a waiver of the rights of any Secured Creditor to any other or further action in any circumstances without notice or demand. It is not necessary for any Secured Creditor to inquire into the capacity or powers of the Borrower or the officers, directors, partners or agents acting or purporting to act on its behalf, and any indebtedness made or created in reliance upon the professed exercise of such powers shall be guaranteed hereunder. 8. Any indebtedness of the Borrower now or hereafter held by any Guarantor is hereby subordinated to the indebtedness of the Borrower or to the Secured Creditors, and if the Administrative Agent or the Collateral Agent so requests, after the occurrence and during the continuance of an Event of Default, such indebtedness of the Borrower to any Guarantor shall be collected, enforced and received by such Guarantor as trustee for the Secured Creditors and be paid over to the Secured Creditors on account of the indebtedness of the Borrower to the Secured Creditors, but without affecting or impairing in any manner the liability of such Guarantor under the other provisions of this Guaranty. Without limiting the generality of the foregoing, each Guarantor hereby agrees with the Secured Creditors that it will not exercise any right of subrogation which it may at any time otherwise have as a result of this Guaranty (whether contractual, under Section 509 of the Bankruptcy Code or otherwise) until all Guaranteed Obligations have been irrevocably paid in full in cash. 9. (a) Each Guarantor waives any right (except as shall be required by applicable law and cannot be waived) to require the Secured Creditors to: (i) proceed against the Borrower, any other Guarantor, any other guarantor of the Guaranteed Obligations or any other party; (ii) proceed against or exhaust any security held from the Borrower, any other Guarantor, any other guarantor of the Guaranteed Obligations or any other party; or (iii) pursue any other remedy in the Secured Creditors' power whatsoever. Each Guarantor waives any defense based on or arising out of any defense of the Borrower, any other Guarantor, any other guarantor of the Guaranteed Obligations or any other party other than payment of the Guaranteed Obligations (but only to the extent of such payment), including, without limitation, any defense based on or arising out of the disability of the Borrower, any other Guarantor, any other guarantor of the Guaranteed Obligations or any other party, or the unenforceability of the Guaranteed Obligations or any part thereof from any cause, or the cessation from any cause of the liability of the Borrower other than payment of the Guaranteed Obligations. The Secured Creditors may, at their election and to the extent permitted by applicable law, foreclose on any security held by the Administrative Agent, the Collateral Agent or the other Secured Creditors by one or more judicial or nonjudicial sales, whether or not every aspect of any such sale is commercially reasonable, or exercise any other right or remedy the Secured Creditors may have against the Borrower or any other party, or any security, without affecting or impairing in any way the liability of any Guarantor hereunder except to the extent the Guaranteed Obligations have been 5 paid in full in cash. Each Guarantor waives any defense arising out of any such election by the Secured Creditors, even though such election operates to impair or extinguish any right of reimbursement or subrogation or other right or remedy of such Guarantor against the Borrower or any other party or any security. (b) Each Guarantor waives all presentments, demands for performance, protests and notices, including, without limitation, notices of nonperformance, notices of protest, notices of dishonor, notices of acceptance of this Guaranty, and notices of the existence, creation or incurring of new or additional indebtedness. Each Guarantor assumes all responsibility for being and keeping itself informed of the Borrower's financial condition and assets, and of all other circumstances bearing upon the risk of nonpayment of the Guaranteed Obligations and the nature, scope and extent of the risks which such Guarantor assumes and incurs hereunder, and agrees that the Secured Creditors shall have no duty to advise any Guarantor of information known to them regarding such circumstances or risks. (c) Each Guarantor hereby acknowledges and affirms that it understands that to the extent the Guaranteed Obligations are secured by Real Property located in the State of California, such Guarantor shall be liable for the full amount of its liability hereunder notwithstanding foreclosure on such Real Property by trustee sale or any other reason impairing such Guarantor's or any Secured Creditors' right to proceed against the Borrower or any other guarantor of the Guaranteed Obligations. In accordance with Section 2856 of the California Civil Code, each Guarantor hereby waives: (i) all rights of subrogation, reimbursement, indemnification, and contribution and any other rights and defenses that are or may become available to such Guarantor by reason of Sections 2787 to 2855, inclusive, 2899 and 3433 of the California Civil Code; (ii) all rights and defenses that such Guarantor may have because the Guaranteed Obligations are secured by Real Property located in the State of California. This means, among other things: (A) the Secured Creditors may collect from such Guarantors without first foreclosing on any real or personal property collateral pledged by the Borrower or any other Credit Party; and (B) if the Secured Creditors foreclose on any Real Property collateral pledged by the Borrower or any other Credit Party, (1) the amount of the Guaranteed Obligations may be reduced only by the price for which that collateral is sold at the foreclosure sale, even if the collateral is worth more than the sale price, and (2) the Secured Creditors may collect from such Guarantor even if the Secured Creditors, by foreclosing on the Real Property collateral, have destroyed any right such Guarantor may have to collect from the Borrower. This is an unconditional and irrevocable waiver of any rights and defenses such Guarantor may have because the Guaranteed Obligations are secured by Real Property. These rights and defenses include, but are not limited to, any rights or defenses based upon Section 580a, 580b, 580d or 726 of the California Code of Civil Procedure; and 6 (iii) all rights and defenses arising out of an election of remedies by the Secured Creditors, even though that election of remedies, such as a nonjudicial foreclosure with respect to security for the Guaranteed Obligations, has destroyed such Guarantor's rights of subrogation and reimbursement against the Borrower by the operation of Section 580d of California the Code of Civil Procedure or otherwise. Each Guarantor warrants and agrees that each of the waivers set forth above is made with full knowledge of its significance and consequences and that if any of such waivers are determined to be contrary to any applicable law or public policy, such waivers shall be effective only to the maximum extent permitted by law. 10. The Secured Creditors agree that this Guaranty may be enforced only by the action of the Administrative Agent or the Collateral Agent and that no other Secured Creditors shall have any right individually to seek to enforce or to enforce this Guaranty or to realize upon the security to be granted by the Security Documents, it being understood and agreed that such rights and remedies may be exercised by the Administrative Agent or the Collateral Agent or, after all the Credit Document Obligations have been paid in full, by the holders of at least a majority of the outstanding Other Obligations, as the case may be, for the benefit of the Secured Creditors upon the terms of this Guaranty and the Security Documents. The Secured Creditors further agree that this Guaranty may not be enforced against any director, officer, employee, partner or stockholder of any Guarantor (except to the extent such partner or stockholder is also a Guarantor hereunder). 11. In order to induce the Lenders to make Loans to, and issue Letters of Credit for the account of, the Borrower pursuant to the Credit Agreement, and in order to induce the Other Creditors to execute, deliver and perform the Interest Rate Protection Agreements or Other Hedging Agreements, each Guarantor represents, warrants and covenants that: (a) Such Guarantor (i) is duly organized, validly existing and in good standing under the laws of the jurisdiction of its organization, (ii) has the Company power and authority to own its property and assets and to transact the business in which it is engaged and presently proposes to engage and (iii) is duly qualified and is authorized to do business and is in good standing in each jurisdiction where the conduct of its business requires such qualification except for failures to be so qualified which, individually or in the aggregate, could not reasonably be expected to have a material adverse effect on the business, operations, financial condition or prospects of Holdings and its Subsidiaries taken as a whole. (b) Such Guarantor has the Company power and authority to execute, deliver and perform the terms and provisions of this Guaranty and each other Credit Document to which it is a party and has taken all necessary corporate action to authorize the execution, delivery and performance by it of this Guaranty and each such other Credit Document. Such Guarantor has duly executed and delivered this Guaranty and each other Credit Document to which it is a party, and this Guaranty and each such other Credit Document 7 constitutes the legal, valid and binding obligation of such Guarantor enforceable in accordance with its terms, except to the extent that the enforceability hereof or thereof may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or other similar laws generally affecting creditors' rights and by equitable principles (regardless of whether enforcement is sought in equity or at law). (c) Neither the execution, delivery or performance by such Guarantor of this Guaranty or any other Credit Document to which it is a party, nor compliance by it with the terms and provisions hereof and thereof, will materially or adversely (i) contravene any provision of any applicable law, statute, rule or regulation or any applicable order, writ, injunction or decree of any court or governmental instrumentality, (ii) conflict with or result in any breach of any of the terms, covenants, conditions or provisions of, or constitute a default under, or result in the creation or imposition of (or the obligation to create or impose) any Lien (except pursuant to the Security Documents) upon any of the property or assets of such Guarantor or any of its Subsidiaries pursuant to the terms of any material indenture, mortgage, deed of trust, loan agreement, credit agreement, or any other material agreement, contract or instrument to which such Guarantor or any of its Subsidiaries is a party or by which it or any of its property or assets is bound or to which it may be subject or (iii) violate any provision of the certificate of incorporation or by-laws (or equivalent organizational documents) of such Guarantor or any of its Subsidiaries. (d) No order, consent, approval, license, authorization or validation of, or filing, recording or registration with (except as have been obtained or made), or exemption by, any governmental or public body or authority, or any subdivision thereof, is required to authorize, or is required for, (i) the execution, delivery and performance of this Guaranty by such Guarantor or any other Credit Document to which such Guarantor is a party or (ii) the legality, validity, binding effect or enforceability of this Guaranty or any other Credit Document to which such Guarantor is a party. (e) There are no actions, suits or proceedings pending or threatened (i) with respect to this Guaranty or any other Credit Document to which such Guarantor is a party or (ii) with respect to such Guarantor that could reasonably be expected to materially and adversely affect (a) the business, operations, financial condition or prospects of Holdings and its Subsidiaries taken as a whole or (b) the rights or remedies of the Secured Creditors hereunder or under the other Credit Documents to which such Guarantor is a party or the ability of such Guarantor to perform its respective obligations to the Secured Creditors hereunder and under the other Credit Documents to which it is a party. 12. Each Guarantor covenants and agrees that on and after the Effective Date and until the termination of the Total Revolving Loan Commitment and all Interest Rate Protection Agreements and Other Hedging Agreements constituting a Guaranteed Obligation of the Borrower and when no Note or Letter of Credit remains outstanding and all Guaranteed Obligations have been paid in full, such Guarantor will comply, and will cause each of its 8 Subsidiaries to comply, with all of the applicable provisions, covenants and agreements contained in Sections 8 and 9 of the Credit Agreement, and will take, or will refrain from taking, as the case may be, all actions that are necessary to be taken or not taken so that it is not in violation of any provision, covenant or agreement contained in Section 8 or 9 of the Credit Agreement, and so that no Default or Event of Default, is caused by the actions of such Guarantor or any of its Subsidiaries. 13. The Guarantors hereby jointly and severally agree to pay all reasonable out-of-pocket costs and expenses of each Secured Creditor in connection with the enforcement of this Guaranty and of the Administrative Agent in connection with any amendment, waiver or consent relating hereto (including in each case, without limitation, the reasonable fees and disbursements of counsel employed by each Secured Creditor). 14. This Guaranty shall be binding upon each Guarantor and its successors and assigns and shall inure to the benefit of the Secured Creditors and their successors and assigns. 15. Neither this Guaranty nor any provision hereof may be changed, waived, discharged or terminated except with the written consent of each Guarantor directly affected thereby and with the written consent of the Required Secured Creditors (as defined in the Security Agreement); PROVIDED, that any change, waiver, modification or variance affecting the rights and benefits of a single Class (as defined below) of Secured Creditors (and not all Secured Creditors in a like or similar manner) shall also require the written consent of the Requisite Creditors (as defined below) of such Class of Secured Creditors (it being understood that the addition or release of any Guarantor hereunder shall not constitute a change, waiver, discharge or termination affecting any Guarantor other than the Guarantor so added or released). For the purpose of this Guaranty, the term "Class" shall mean each class of Secured Creditors, I.E., whether (x) the Lender Creditors as holders of the Credit Document Obligations or (y) the Other Creditors as the holders of the Other Obligations. For the purpose of this Guaranty, the term "Requisite Creditors" of any Class shall mean (x) with respect to the Credit Document Obligations, the Required Lenders and (y) with respect to the Other Obligations, the holders of at least a majority amount of all obligations outstanding from time to time under the Interest Rate Protection or Other Hedging Agreements, but only if such Interest Rate Protection Agreement or Other Hedging Agreement constitutes a Guaranteed Obligation of the Borrower. 16. Each Guarantor acknowledges that an executed (or conformed) copy of each of the Credit Documents and Interest Rate Protection Agreements or Other Hedging Agreements has been made available to its principal executive officers and such officers are familiar with the contents thereof. 17. In addition to any rights now or hereafter granted under applicable law (including, without limitation, Section 151 of the New York Debtor and Secured Creditor Law) and not by way of limitation of any such rights, upon the occurrence and during the continuance of an Event of Default (such term to mean and include any "Event of Default" as defined in the 9 Credit Agreement or any payment default under any Interest Rate Protection Agreement or Other Hedging Agreement, but only if such Interest Rate Protection Agreement or Other Hedging Agreement constitutes a Guaranteed Obligation of the Borrower, continuing after any applicable grace period), each Secured Creditor is hereby authorized, at any time or from time to time, without notice to any Guarantor or to any other Person, any such notice being expressly waived, to set off and to appropriate and apply any and all deposits (general or special) and any other indebtedness at any time held or owing by such Secured Creditor to or for the credit or the account of such Guarantor, against and on account of the obligations and liabilities of such Guarantor to such Secured Creditor under this Guaranty, irrespective of whether or not such Secured Creditor shall have made any demand hereunder and although said obligations, liabilities, deposits or claims, or any of them, shall be contingent or unmatured. Notwithstanding anything to the contrary contained in this Section 17, no Secured Creditor shall exercise any such right of set-off without the prior consent of the Administrative Agent or the Required Secured Creditors so long as the Guaranteed Obligations shall be secured by any Real Property located in the State of California, it being understood and agreed, however, that this sentence is for the sole benefit of the Secured Creditors and may be amended, modified or waived in any respect by the Required Secured Creditors without the requirements of prior notice to or consent by any Credit Party and does not constitute a waiver of any rights against any Credit party or against any Collateral. 18. All notices, requests, demands or other communications pursuant hereto shall be deemed to have been duly given or made when delivered to the Person to which such notice, request, demand or other communication is required or permitted to be given or made under this Guaranty, addressed to such party at (i) in the case of any Lender Creditor, as provided in the Credit Agreement, (ii) in the case of any Guarantor, at the address set forth opposite such Guarantor's signature below and (iii) in the case of any Other Creditor, at such address as such Other Creditor shall have specified in writing to the Guarantors; or in any case at such other address as any of the Persons listed above may hereafter notify the others in writing. 19. If claim is ever made upon any Secured Creditor for repayment or recovery of any amount or amounts received in payment or on account of any of the Guaranteed Obligations and any of the aforesaid payees repays all or part of said amount by reason of (i) any judgment, decree or order of any court or administrative body having jurisdiction over such payee or any of its property or (ii) any settlement or compromise of any such claim effected by such payee with any such claimant (including the Borrower) then and in such event each Guarantor agrees that any such judgment, decree, order, settlement or compromise shall be binding upon such Guarantor, notwithstanding any revocation hereof or other instrument evidencing any liability of the Borrower, and such Guarantor shall be and remain liable to the aforesaid payees hereunder for the amount so repaid or recovered to the same extent as if such amount had never originally been received by any such payee. 20. (a) THIS GUARANTY AND THE RIGHTS AND OBLIGATIONS OF THE SECURED CREDITORS AND OF THE UNDERSIGNED HEREUNDER SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE 10 OF NEW YORK. Any legal action or proceeding with respect to this Guaranty or any other Credit Document to which any Guarantor is a party may be brought in the courts of the State of New York or of the United States of America for the Southern District of New York, and, by execution and delivery of this Guaranty, each Guarantor hereby irrevocably accepts for itself and in respect of its property, generally and unconditionally, the jurisdiction of the aforesaid courts. Each Guarantor hereby further irrevocably waives any claim that any such court lacks personal jurisdiction over such Guarantor, and agrees not to plead or claim in any legal action or proceeding with respect to this Guaranty or any other Credit Document to which such Guarantor is a party brought in any of the aforesaid courts that any such court lacks personal jurisdiction over such Guarantor. Each Guarantor further irrevocably consents to the service of process out of any of the aforementioned courts in any such action or proceeding by the mailing of copies thereof by registered or certified mail, postage prepaid, to such Guarantor at its address set forth opposite its signature below, such service to become effective 30 days after such mailing. Each Guarantor hereby irrevocably waives any objection to such service of process and further irrevocably waives and agrees not to plead or claim in any action or proceeding commenced hereunder or under any other Credit Document to which such Guarantor is a party that such service of process was in any way invalid or ineffective. Nothing herein shall affect the right of any of the Secured Creditors to serve process in any other manner permitted by law or to commence legal proceedings or otherwise proceed against each Guarantor in any other jurisdiction. (b) Each Guarantor hereby irrevocably waives (to the fullest extent permitted by applicable law) any objection which it may now or hereafter have to the laying of venue of any of the aforesaid actions or proceedings arising out of or in connection with this Guaranty or any other Credit Document to which such Guarantor is a party brought in the courts referred to in clause (a) above and hereby further irrevocably waives and agrees not to plead or claim in any such court that such action or proceeding brought in any such court has been brought in an inconvenient forum. (c) EACH GUARANTOR AND EACH SECURED CREDITOR (BY ITS ACCEPTANCE OF THE BENEFITS OF THIS GUARANTY) HEREBY IRREVOCABLY WAIVES ALL RIGHTS TO A TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS GUARANTY, THE OTHER CREDIT DOCUMENTS TO WHICH SUCH GUARANTOR IS A PARTY OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY. 21. In the event that all of the capital stock of one or more Guarantors is sold or otherwise disposed of or liquidated in compliance with the requirements of Section 9.02 of the Credit Agreement (or such sale or other disposition has been approved in writing by the Required Secured Creditors) and the proceeds of such sale, disposition or liquidation are applied in accordance with the provisions of the Credit Agreement, to the extent applicable, such Guarantor shall upon consummation of such sale or other disposition (except to the extent that such sale or disposition is to the Borrower or another Subsidiary thereof) be released from this Guaranty automatically and without further action and this Guaranty shall, as to each such Guarantor or 11 Guarantors, terminate, and have no further force or effect, and upon the request of Borrower, the Administrative Agent, on behalf of the Secured Creditors, shall acknowledge, in writing, the termination of this Guaranty (it being understood and agreed that the sale of one or more Persons that own, directly or indirectly, all of the capital stock of any Guarantor shall be deemed to be a sale of such Guarantor for the purposes of this Section 21). 22. At any time a payment in respect of the Guaranteed Obligations is made under this Guaranty, the right of contribution of each Guarantor against each other Guarantor shall be determined as provided in the immediately following sentence, with the right of contribution of each Guarantor to be revised and restated as of each date on which a payment (a "Relevant Payment") is made on the Guaranteed Obligations under this Guaranty. At any time that a Relevant Payment is made by a Guarantor that results in the aggregate payments made by such Guarantor in respect of the Guaranteed Obligations to and including the date of the Relevant Payment exceeding such Guarantor's Contribution Percentage (as defined below) of the aggregate payments made by all Guarantors in respect of the Guaranteed Obligations to and including the date of the Relevant Payment (such excess, the "Aggregate Excess Amount"), each such Guarantor shall have a right of contribution against each other Guarantor who has made payments, in respect of the Guaranteed Obligations to and including the date of the Relevant Payment, in an aggregate amount less than such other Guarantor's Contribution Percentage of the aggregate payments made to and including the date of the Relevant Payment by all Guarantors in respect of the Guaranteed Obligations (the aggregate amount of such deficit, the "Aggregate Deficit Amount") in an amount equal to (x) a fraction the numerator of which is the Aggregate Excess Amount of such Guarantor and the denominator of which is the Aggregate Excess Amount of all Guarantors multiplied by (y) the Aggregate Deficit Amount of such other Guarantor. A Guarantor's right of contribution pursuant to the preceding sentences shall arise at the time of each computation, subject to adjustment to the time of any subsequent computation; PROVIDED, that no Guarantor may take any action to enforce such right until the Guaranteed Obligations have been irrevocably paid in full in cash, it being expressly recognized and agreed by all parties hereto that any Guarantor's right of contribution arising pursuant to this Section 22 against any other Guarantor shall be expressly junior and subordinate to such other Guarantor's obligations and liabilities in respect of the Guaranteed Obligations and any other obligations owing under this Guaranty. As used in this Section 22: (i) each Guarantor's "Contribution Percentage" shall mean the percentage obtained by dividing (x) the Adjusted Net Worth (as defined below) of such Guarantor by (y) the aggregate Adjusted Net Worth of all Guarantors; (ii) the "Adjusted Net Worth" of each Guarantor shall mean the greater of (x) the Net Worth (as defined below) of such Guarantor and (y) zero; and (iii) the "Net Worth" of each Guarantor shall mean the amount by which the fair salable value of such Guarantor's assets on the date of any Relevant Payment exceeds its existing debts and other liabilities (including contingent liabilities, but without giving effect to any Guaranteed Obligations arising under this Guaranty) on such date. All parties hereto recognize and agree that, except for any right of contribution arising pursuant to this Section 22, each Guarantor who makes any payment in respect of the Guaranteed Obligations shall have no right of contribution or subrogation against any other Guarantor in respect of such payment until all of the Guaranteed Obligations have been irrevocably paid in full in cash. Each of the Guarantors recognizes and acknowledges that the rights to contribution 12 arising hereunder shall constitute an asset in favor of the party entitled to such contribution. In this connection, each Guarantor has the right to waive its contribution right against any Guarantor to the extent that after giving effect to such waiver such Guarantor would remain solvent, in the determination of the Required Lenders. 23. Each Guarantor and each Secured Creditor (by its acceptance of the benefits of this Guaranty) hereby confirms that it is its intention that this Guaranty not constitute fraudulent transfer or conveyance for purposes of the Bankruptcy Code, the Uniform Fraudulent Conveyance Act of any similar Federal or state law. To effectuate the foregoing intention, each Guarantor and each Secured Creditor (by its acceptance of the benefits of this Guaranty) hereby irrevocably agrees that the Guaranteed Obligations guaranteed by such Guarantor shall be limited to such amount as will, after giving effect to such maximum amount and all other (contingent or otherwise) liabilities of such Guarantor that are relevant under such laws, and after giving effect to any rights to contribution pursuant to any agreement providing for an equitable contribution among such Guarantor and the other Guarantors, result in the Guaranteed Obligations of such Guarantor in respect of such maximum amount not constituting a fraudulent transfer or conveyance. 24. This Guaranty may be executed in any number of counterparts and by the different parties hereto on separate counterparts, each of which when so executed and delivered shall be an original, but all of which shall together constitute one and the same instrument. A set of counterparts executed by all the parties hereto shall be lodged with the Guarantors and the Administrative Agent. 25. All payments made by any Guarantor hereunder will be made without setoff, counterclaim or other defense and on the same basis as payments are made by the Borrower under Sections 4.03 and 4.04 of the Credit Agreement. 26. It is understood and agreed that any Subsidiary of Holdings that is required to execute a counterpart of this Guaranty after the date hereof pursuant to the Credit Agreement shall automatically become a Guarantor hereunder by executing a counterpart hereof and delivering the same to the Administrative Agent. * * * 13 IN WITNESS WHEREOF, each Guarantor has caused this Guaranty to be executed and delivered as of the date first above written. Address: c/o Information Holdings, Inc. CRC PRESS, L.L.C. 2777 Summer Street as a Guarantor Suite 209 Stamford, CT 06905 Attn: Vincent Chippari By:__________________________ Telephone No.: (203) 961-9208 Name: Telecopier No.: (203) 961-1431 Title: c/o Information Holdings, Inc. MICROPATENT, L.L.C. 2777 Summer Street as a Guarantor Suite 209 Stamford, CT 06905 Attn: Vincent Chippari By:__________________________ Telephone No.: (203) 961-9208 Name: Telecopier No.: (203) 961-1431 Title: c/o Information Holdings, Inc. MASTER DATA CENTER, INC. 2777 Summer Street as a Guarantor Suite 209 Stamford, CT 06905 Attn: Vincent Chippari By:__________________________ Telephone No.: (203) 961-9208 Name: Telecopier No.: (203) 961-1431 Title: c/o Information Holdings, Inc. CRC PRESS UK, L.L.C. 2777 Summer Street as a Guarantor Suite 209 Stamford, CT 06905 Attn: Vincent Chippari By:__________________________ Telephone No.: (203) 961-9208 Name: Telecopier No.: (203) 961-1431 Title: 14 c/o Information Holdings, Inc. OPTIPAT, INC. 2777 Summer Street as a Guarantor Suite 209 Stamford, CT 06905 Attn: Vincent Chippari By:__________________________ Telephone No.: (203) 961-9208 Name: Telecopier No.: (203) 961-1431 Title: c/o Information Holdings, Inc. MICROPATENT UK, L.L.C. 2777 Summer Street as a Guarantor Suite 209 Stamford, CT 06905 Attn: Vincent Chippari By:__________________________ Telephone No.: (203) 961-9208 Name: Telecopier No.: (203) 961-1431 Title: Accepted and Agreed to: BANKERS TRUST COMPANY, as Administrative Agent By______________________ Name: Title: 15