Do you have of the archive ready in your folder?

GOG versions are usually DRM-free, but if the archive asks for a password, it is typically provided by the source where you acquired the files.

This usually means part03.rar (or another part) was corrupted during download. You will likely need to redownload that specific part.

Right-click only on part01.rar and select "Extract Here" or "Extract to [Folder Name]" .

The software will automatically pull data from part02 , part03 , and the rest of the sequence to rebuild the full game installer. 3. Common Troubleshooting