Exhibit 4.17 From: Robin W. I. Lodge/Marshall Services Limited To: Gentia Software plc Tuition House St George's Road Wimbledon London SW19 4EU August 1999 Dear Sirs: 1. AMOUNT We are pleased to make available to you a loan in the principal sum of $1,000,000 on the terms and conditions of this letter. The money shall be paid by Robin W. I. Lodge (or such other person as we may in our sole discretion nominate) into an account in the name of Gentia Software plc at Barclays Bank Plc account number 20684058, sort code 20-65-63 and you may draw the loan in amounts of no more than $400,000 on not less than 1 business day's notice to Barclays Bank Plc. 2. REPAYMENT You will repay the loan together with interest on it at any time forthwith on demand. 3. INTEREST The principal amount of the loan outstanding from time to time will carry interest at the rate of two per cent (2%) per annum above the base rate of Barclays Bank Plc as varied from time to time accruing daily and payable quarterly in arrears at the end of November, February, May and August in each year. However, if you default in the payment or repayment on the due date of any sum from time to time due under this letter or if the provisions of clause 4 are not complied with in full, interest will accrue on a daily basis (payable on demand) on the amount in respect of which default has been made from the date of default until actual payment (both before and after judgment) at the rate of five per cent (5%) per annum above the base rate of Barclays Bank Plc as varied from time to time. 4. SECURITY As security for your obligations to us under this loan you and your subsidiaries shall enter into a composite guarantee and debenture (in a form satisfactory to us) with Robin W. I. Lodge within 7 days of the date of this letter (the "Security") and provide Robin W. I. Lodge with a copy of your and your subsidiaries board minutes approving your entry into the Security (all in a form satisfactory to us). 5. CONVERSION FROM DEBT TO EQUITY On demand by us for the repayment of the loan you will forthwith agree the terms upon which the loan can at our election be converted into American Depository Shares ("ADS") of the company with such ADSs being (1) evidenced by American Depository Receipts, (2) registered under the United States Securities Act of 1993 (as amended) and (3) listed on the NASDAQ National Market. Each ADS shall represent one ordinary share, par value 15p of the Company and for these purposes the deemed market value of each share shall be $2.25. 6. SET-OFF You will make all payments under or in respect of this facility for value on the due date in US dollars to Robin W. I. Lodge at his account numbered 20582948 with Barclays Bank Plc of 50 Pall Mall, London, SW1 1QB sort code 20-65-63 or such other account as we may in our sole discretion nominate and from time to time instruct you in writing. If any payment becomes due on a day which is not a day on which banks are generally open for business in London, the due date of such payment will be extended to the next business day. You will make all payments under or in respect of this facility without set-off or counterclaim and free and clear of any withholding or deduction for or on account of tax, save as may be required by law. 7. MANDATORY PREPAYMENT Notwithstanding the above provisions of this letter, the loan and all interest on it will become due and payable or repayable forthwith on demand by us (1) you fail to pay any sum under this letter within the three business days of its due date or you are in breach of any other provision of this letter or the Security when it is in place; or (2) an administration order is made in relation to you or a receiver or manager or administrative receiver is appointed of you or any of your assets or you enter into liquidation; or (3) any distress or execution is levied on or affects any material part of your property or assets; or (4) you are insolvent or unable to pay your debts; or (5) you cease to carry on business; or (6) if any of the above events at (2) - (5) occur to any of your subsidiaries which have entered into the Security or (7) if any event analogous to those set out at (2) - (5) above occurs to you or any of your subsidiaries which have entered into the Security, occurs in any other jurisdiction to which you or such subsidiaries are subject. 8. COSTS AND EXPENSES You will pay, on demand all reasonable costs and expenses (and VAT) which we may from time to time incur in connection with the enforcement of my rights under this letter and/or the loan. 9. NOTICES Any demand or notice in respect of this letter and/or the loan will be in writing and (without prejudice to any other effective means of serving it) may be served on you personally or by post and either by delivering it to any of your officers at any place or by despatching it addressed to you at your registered or principal office for the time being. Any such demand or notice delivered personally shall be deemed to have been received immediately upon delivery. Any such demand or notice sent by post shall be sent by a guaranteed next day delivery service and shall be deemed to have been received at the opening of business on the second working day following the day on which it was posted, even if returned undelivered. 10. PURPOSE The loan is primarily for working capital purposes and can be drawn down in accordance with paragraph 1 above. 11. TIME OF THE ESSENCE Time shall be of the essence in respect of your obligations under or in respect of this facility but no failure by us to exercise or delay in exercising any right or remedy under or in respect of this facility shall operate as a waiver of it, nor shall any single partial or defective exercise by us of any such right or remedy preclude any other or further exercise of that or any other right or remedy. 12. GOVERNING LAW AND JURISDICTION This letter shall be governed by and construed in accordance with English Law and all disputes in connection with this letter and loan shall be subject to the non-exclusive jurisdiction of the courts of England. 13. ACCEPTANCE To accept the terms and conditions of this letter, please sign and return the enclosed copy failing which this letter will lapse and the loan will not be available to you. Yours faithfully /s/ Robin W. I. Lodge Robin W. I. Lodge Anthony Fox For and on behalf of Marshall Services Limited /s/ Nicholas P. S. Bray /s/ S. R. Fluin /s/ R. A. Wallman Agreed and accepted S. R. Fluin R. A. Wallman Date 26th August 2000 For and on behalf of GENTIA SOFTWARE PLC Director