winhttp: The last parameter of WinHttpQueryDataAvailable and WinHttpReadData is optional.
[wine] / dlls / inseng /
drwxr-xr-x   ..
-rw-r--r-- 320 Makefile.in
-rw-r--r-- 384 inseng.spec
-rw-r--r-- 1913 inseng_main.c
-rw-r--r-- 15035 regsvr.c