winhttp: The last parameter of WinHttpQueryDataAvailable and WinHttpReadData is optional.
[wine] / dlls / mshtml.tlb /
drwxr-xr-x   ..
-rw-r--r-- 272 Makefile.in
-rw-r--r-- 27 mshtml.tlb.spec
-rw-r--r-- 815 mshtml_tlb.idl
-rw-r--r-- 933 rsrc.rc