Shell value in the registry at either HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon (per machine) or HKCU\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon (per user). Microsoft replaced Program Manager in Windows XP Service Pack 2 with a compatibility stub that simply redirects to Windows Explorer. In Windows Vista and later, PROGMAN.EXE was permanently removed from the operating system. See also Presentation Manager Windows shell replacement References Cited works Windows components Graphical user interfaces Discontinued Windows components