Int 2F Fn 5400  U - Power.exe - Installation Check                         [p]

   AX = 5400h

Return: AX = POWER.EXE version (AH = major, AL = minor) if installed
   BX = 504Dh ("PM")
   CF clear

Note:  called by MS Windows 3.1 POWER.DRV

See Also: AH=53h,AX=5401h,AX=5402h,AX=5481h,AX=5482h