Int 2F Fn ED00  - Phar Lap DOS Extenders - Installation Check              [E]

   AX = ED00h
   BL = DOS extender
       01h 286dosx v1.3+ (Software Development Kit)
       02h 286dosx v1.3+ (Run-Time Kit)
       03h 386dosx v4.0+ (SDK)
       04h 386dosx v4.0+ (RTK)

Return: AL = status
       00h not installed
       FFh installed
       SI = 5048h ("PH")
       DI = 4152h ("AR")
       CH = major version number
       CL = minor version number
       DX = flags
           bit 0: running under DPMI
           bit 1: running under Phar Lap VMM
       if running under DPMI:
           BX = DPMI version (BH = major, BL = minor)

See Also: AH=A1h,AX=F100h,AX=FBA1h