http://bugs.winehq.org/show_bug.cgi?id=26340
--- Comment #2 from Nikolay Sivov bunglehead@gmail.com 2011-03-07 04:31:18 CST --- This one could be msxml bug, from log:
--- 0027:trace:msxml:httprequest_send (0x15e090)->({vt 16396}) 0027:trace:msxml:BindStatusCallback_create created callback 0x178888 0027:fixme:msxml:BindStatusCallback_create unsupported body data type 16396 ---
so type is VT_BYREF|VT_VARIANT that we don't support for input. Native msxml6 hits a fixme in urlmon instead, probably unrelated thing.
Anyway I'm waiting for source to write a test for that.