Are all the other applications closed? Try to reboot the PC and start the installation right after. Also, check the application automatically started at boot time.

HTH

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>I have built an install set using VFP 6's (SP 3) setup wizard. The application installs fine on all comptuers tested except one. We keep getting an error message that says: '\Windows\System\MFC42.DLL is in use by another application'.