I think I might have got WC3 Kilrathi Saga version running perfectly in Windows XP. Would greatly appreciate the help of anybody who know what they are doing for further testing. So far, it runs perfectly for me. Instructions as below: 1. Download and install the Microsoft Application Compatibility Toolkit at: http://www.microsoft.com/downloads/...79-933A-4CC8-BF86-FE2E28B792FD&displaylang=en 2. Run the Compatability Administrator program and create an application fix for WC3W.EXE with the following settings: EmulateCDFS HandleAPIExceptions IgnoreScheduler On my computer it plays great, movies don't crash, and the keyboard input is not laggy. I haven't played it long enough to test out long term stability, but this seems very promising! Screenshot of Compatibility Administrator for reference below.