Int 16 Fn FFF3  U - Pc Tools V5.1-8.0 Desktop - Prepare To Unload Residen  [U]

   AX = FFF3h

Note:  releases any EMS being used; restores video mode, page, and cursor
     shape; and restores interrupt vectors

See Also: AX=FFC5h,AX=FFEFh
Index: uninstall;PC Tools DESKTOP