problems with oleacc.dll file

I have installed avast! on a computer running windows 95 service pack 2. The install went fine but when I first ran the program I got the following error message:

The OLEACC.dll file is linked to missing export USER32.dll: Get Window Module File Name A.

Does anyone have any idea why I would get this message and how I could fix it?

Please take a look here: http://www.avast.com/forum/index.php?board=2;action=display;threadid=1920;start=msg12835#msg12835 (the last reply, from me)

Thanks
Vlk