Windows 95 provides an option for verifying installed components when Setup detects an existing Windows 95 installation. When you use the Verify option, Setup reads SETUPLOG.TXT for the installed components and reruns the Setup process to verify all system components. If Verify fails as a result of a missing or damaged file, Setup reinstalls the file. As part of this verification, Setup rebuilds VMM32.VXD and recopies any required files.
Windows 95 also provides a way in the user interface to check whether the version of DLL or support file is current. For information, see "Checking for Correct File Versions" later in this chapter.