+'captive' account as pre/post-install.
Why native NT autocheck (=w/o errors) the volume after our DISMOUNT_VOLUME?
Strict ulimit (rlimit) of sandbox child.
+Set direct-write buffers limit for sandbox child.
+'captive' account as pre/post-install.
+
Better BLKGETSIZE64 vs. BLKGETSIZE run-time availability compatibility.