melmovano: For all those desperate souls just like me who tried all the tips like:
- Install Direct X June 2010
- Turn off DEP
- Install Xvid
- Replace videos
- Turn on compatibility mode
and still didn't succeed in launching the game, try following:
Start menu ==> Programs ==> Xvid ==> Configure Decoder ==> Tick "Compatibility Renderer"
Worked like a charm for me, without having to turn off DEP and using compatibility mode. Using WinXP Pro SP3 x86.
It's really sad that GOG doesn't include a troubleshooting for this DDERR error in the FAQ of Swat 3, because this error seems to concern everyone buying the game.
Thank you for the help, all I had to do to get the game running was install Xvid and follow your instructions.