================================================================================ SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 DECEMBER 17, 1998 Date of Report (date of earliest event reported) INTERNATIONAL NETWORK SERVICES (Exact name of Registrant as specified in its charter) CALIFORNIA 0-21131 77-0289509 (State or other jurisdiction of (Commission File Number) (I.R.S. Employer Identification No.) incorporation or organization) 1213 INNSBRUCK DRIVE SUNNYVALE, CALIFORNIA 94089 (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES) Registrant's telephone number, including area code: (408) 542-0100 N/A (Former name or former address, if changed since last report) ================================================================================ Item 5. Other Events ------------ International Network Services ("INS") is restating the following information to give retroactive effect to its acquisition (the "Acquisition") of VitalSigns Software, Inc. ("VitalSigns"), which was effective as of November 20, 1998 and accounted for as a pooling of interests: (i) Consolidated Financial Statements at June 30, 1997 and 1998 and for each of the three years in the period ended June 30, 1998, (ii) unaudited Consolidated Financial Statements at September 30, 1998 and for the fiscal quarters ended September 30, 1998 and 1997, and (iii) Management's Discussion and Analysis of Financial Condition and Results of Operations which relates to the foregoing financial statements. Such information is attached hereto as Exhibit 99 and incorporated herein by this reference. Generally accepted accounting principles proscribe giving effect to a consummated business combination accounted for by the pooling of interests method in financial statements that do not include the date of consummation. These financial statements do not extend through the date of consummation. However, they will become the historical consolidated financial statements of INS and its subsidiaries after financial statements covering the date of consummation of the business combination are issued. Item 7. Financial Statements and Exhibits --------------------------------- (a) Financial Statements Not Applicable (b) Pro Forma Financial Information Not Applicable (c) Exhibits 23 Consent of PricewaterhouseCoopers LLP 27.1 Financial Data Schedule Period Type Three Months 27.2 Financial Data Schedule Period Type Twelve Months 99 Supplemental Financial Information: Report of Independent Accountants Supplemental Consolidated Balance Sheets Supplemental Consolidated Statements of Income Supplemental Consolidated Statements of Shareholders' Equity Supplemental Consolidated Statements of Cash Flows Notes to Supplemental Consolidated Financial Statements Management's Discussion and Analysis of Financial Condition and Results of Operations Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized. Dated: December 17, 1998 INTERNATIONAL NETWORK SERVICES /s/ Kevin J. Laughlin --------------------------- Kevin J. Laughlin Vice President, Finance and Chief Financial Officer INTERNATIONAL NETWORK SERVICES EXHIBIT INDEX TO FORM 8-K Dated December 17, 1998 Exhibit 23 Consent of PricewaterhouseCoopers LLP 27.1 Financial Data Schedule Period Type Three Months 27.2 Financial Data Schedule Period Type Twelve Months 99 Supplemental Financial Information: Report of Independent Accountants Supplemental Consolidated Balance Sheets Supplemental Consolidated Statements of Income Supplemental Consolidated Statements of Shareholders' Equity Supplemental Consolidated Statements of Cash Flows Notes to Supplemental Consolidated Financial Statements Management's Discussion and Analysis of Financial Condition and Results of Operations