Returns: CF NC (this fn always succeeds with DPMI 1.0+)
AX capability flags (see below)
ES:DI (or ES:EDI) selector:offset of host version info
Info: This obtains information about the capabilities supported by the
0: 0001H 1=page accessed/dirty supported
1: 0002H 1=excptn. restartability suprtd
2: 0004H 1=conv. mem mapping supported
2: 0008H 1=device mapping supported
2: 0010H 1=demand zero-fill supported
2: 0020H 1=write-protect client supported
2: 0040H 1=write-protect host supported
ES:(E)DI on return, points to a 128-byte buffer containing information
about the DPMI host itself. It is formatted as:
+0 1 bVerMaj host major version #
+1 1 vVerMin host minor version #
+2 n szName ASCIIZ host name
2+n ? filler to end of record
128 size of this structure