The SCXViewer is not a release ready program if you want to browse scx files use the program under "VS_Projects\slrrHelp\SCXUV\bin\x64\Release\SCXUV.exe"
The SCXViewer should also work but its an experimental little program to move the phys' of a car (similarly the valid program would be under "\VS_Projects\slrrHelp\SCXViewer\bin\x64\Release\SCXViewer.exe" or "VS_Projects\slrrHelp\SCXViewer\bin\x64\Debug\SCXViewer.exe" but I suspect them being quite old in the original exhaustive pack.
What are you trying to achieve I can probably put together a small app.
