When I tried to run pySimReader on Windows 2000 I received the following error
pySimReader.exe - Unable to Locate DLL
The dynamic link library gdiplus.dll could not be found in the specified path.
A quick web search showed the required gdiplus.dll is distributed within the "Platform SDK Redistributable: GDI+" available for download from Microsoft http://www.microsoft.com/downloads/details.aspx?FamilyId=6A63AB9C-DF12-4D41-933C-BE590FEAA05A
After some "Genuine Advantage" checks, downloading and extracting copy <EXTRACT_LOCATION>\asms\10\msft\windows\gdiplus\gdiplus.dll to the same directory as pySimReader.exe and it should work, well it did for me.