WinPatch Pro 1.2 compares an old file system in one Windows folder to a new file system in another Windows folder and creates a patch file that can be distributed and used by others to update their set of files to the new version. WinPatch (and the WinPatch Wizard) is fast, easy to use, and powerful. WinPatch 1.2 is a 32-bit Windows application that can be used on either Windows 98, Windows Me, Windows NT 4.0, and Windows 2000. The Professional Edition comes with a company-wide license, an ActiveX control to apply patches, and the source code to the ActiveX control.