2FD44D INT 2F - 4DOS.COM v2.1+ - API
2FD44E INT 2F C - 4DOS v3.0+ - AWAITING USER INPUT
2FD44FBX0000 INT 2F - 4DOS v4.0+ - KSTACK.COM - INSTALLATION CHECK
2FD44FBX0001 INT 2F - 4DOS v4.0+ - KSTACK.COM - PLACE KEYSTROKES INTO KEYSTACK