Raga non riesco a installare ut2003 demo
mi da questo errore

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UT2003 Setup Build UT2003_Build_[2002-09-19_17.26]

OS: Windows XP 5.1 (Build: 2600)
CPU: GenuineIntel PentiumPro-class processor @ 1000 MHz with 255MB RAM
Video: No Video

Assertion failed: GetClassInfoExW( NULL, WinBaseClass, &Cls ) [File:Window.cpp] [Line: 1056]

History: WControl::RegisterWindowClass <- UWindowManager::UWindowManager <- InitWindowing
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quale sarebbe il problema che non riesco a installare
UT2003

ciao............................