If a virtual device driver (VxD), or other key Win 95 file, becomes overwritten or corrupted, one of your applications (or the OS) might not work. This can occur, for example, when you load a third-party version of WINSOCK.DLL: It overwrites the original Winsock file in the \System folder.

To restore the original system file, back up your C:\Windows folder and its subfolders, then rerun Win 95's Setup program (SETUP.EXE). When it prompts you to "Restore Windows files that are changed or corrupted," simply click on OK.

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