INT E0 - DR Multiuser DOS - "A_CATTACH" - CONDITIONALLY ATTACH TO AUX DEVICE CL = A7h Return: AX = status 0000h attached FFFFh unable to attach Desc: attaches the default auxiliary device to the calling process if it is available Notes: does not block if the device is already in use also supported by REAL/32 SeeAlso: INT E0/CL=A5h,INT E0/CL=A6h,INT E0/CL=A8h,INT E0/CL=B0h