Don't include windows.h & co in the Wine sources.
[wine] / dlls / msdmo /
drwxr-xr-x   ..
-rw-r--r-- 369 Makefile.in
-rw-r--r-- 17048 dmoreg.c
-rw-r--r-- 4903 dmort.c
-rw-r--r-- 535 msdmo.spec
-rw-r--r-- 23 msdmo_main.c
-rw-r--r-- 1055 rsrc.rc