[Bug 17271] Office 2003/2007 help does not work

http://bugs.winehq.org/show_bug.cgi?id=17271

--- Comment #18 from Andrew Eikum  2013-01-10 13:59:41 CST ---
Here's my analysis of MSO2k3 help:

The MSO2k3 help system uses several different CHM files, which refer to each
other. It loads up "C:\Program Files\Microsoft
Office\OFFICE11\1033\ofmain11.chm", which eventually contains references to
"mk:@msitstore:msohlp11.chm::/html/office10.css".

These references fail because they're relative. The CWD is out in the
C:\windows\system32 directory instead of in the "1033" directory where the
first CHM was loaded. I haven't figured out yet which module is responsible for
resolving the relative link.

CoInternetCombineUrlEx doesn't seem to be smart enough to interpret
mk:@msitstore URLs. ITSS doesn't seem to get enough information to resolve such
a reference.

So who resolves the relative reference?