Int 15 Fn BFDE - Desqview/x 1.02+ - Dvdos4gx.dvr - Check If ??? Mailbox [E] AX = BFDEh BX = 0016h CX = index of ??? mailbox (0000h-0004h valid, but no range checking done) Return: AX = status 0000h no one owns mailbox 0001h mailbox has an owner BX destroyed See Also: AX=BFDEh/BX=0015h,AX=BFDEh/BX=0017h