Orc Software invites you to an analyst and press conference and a teleconference April 20

Acting CEO Lars Johansson present and comment on the interim report for January-March 2006.

Analyst and press conference at 2 p.m. CET (in Swedish) The analyst and press conference is held at 2 p.m. CET at Finlandshuset Konferens, Snickarbacken 4, Stockholm. Register at e-mail ir@orcsoftware.com or phone +46 8 407 38 00 no later than April 18, 2006. Telephone conference at 4 p.m. CET (in English) Orc Software also invites you to a telephone conference at 4 p.m. CET. International participants call: +44 20 7162 0025 Swedish participants call: +46 (0)8 5052 0110 (Note: Callers in Stockholm and London should also dial the respective area code.) Slides can be viewed at http://www.orcsoftware.com/Company/IR/Presentation.htm Register at e-mail ir@orcsoftware.com or phone +46 8 407 38 00 no later than April 18, 2006.