For what its worth here is the output from the command that succeeds.
cl -c -DCRTAPI1=_cdecl -DCRTAPI2=_cdecl -nologo -GS -D_X86_=1 -DWIN32 -D_WIN32 -W3 -D_WINNT -D_WIN32_WINNT=0x0500 -D_WIN32_IE=0x500 -DWINVER=0x0500 /Oy- /GF /Gd /Gy /Os /EHsc /wd4996 /GT /GS /W3 /Od /Zi -I. -Ic:\src\openafs\openafs-1-5-branch\dest\i386_w2k\checked\include -Ic:\src\openafs\openafs-1-5-branch\dest\i386_w2k\checked\include\afs -Ic:\src\openafs\openafs-1-5-branch\dest\i386_w2k\checked\include\rx -DWIN32_LEAN_AND_MEAN -DSTRICT -D_WIN32_IE=0x0500 -D_WIN32_WINNT=0x0500 -DWINVER=0x0500 -DREGISTER_POWER_NOTIFICATIONS -DAFS_AFSDB_ENV -DAFS_FREELANCE_CLIENT -DAFS_64BIT_ENV -DAFS_64BIT_CLIENT -DAFS_LARGEFILE_ENV -DDEBUG /RTCs /RTCu -ML -IC:\WINDDK\3790.1830\INC\WNET;C:\WINDDK\3790.1830\INC\WXP -c -DUNICODE -D_UNICODE /Foc:\src\openafs\openafs-1-5-branch\obj\i386_w2k\checked\WINNT\install\loopback\wmi.obj wmi.cpp
cl : Command line warning D9002 : ignoring unknown option '-ML' wmi.cpp
smime.p7s
Description: S/MIME Cryptographic Signature
