[Bug 20736] Left 4 Dead 2 needs imagehlp/ImageAddCertificate() to complete installation

http://bugs.winehq.org/show_bug.cgi?id=20736

--- Comment #32 from Warren Dumortier   2009-11-25 15:39:34 ---
I don't really know what this function does, but i tried with Serious Sam HD
and it completes install, however when launching it works but maps won't load,
it says the map hasn't been found. So i tried an integrity check, which fails
every time and it re-downloads the file every time, but it still doesn't work.

Can this be caused by the fast this function isn't implemented? Would it make
that files aren't copied or corrupted? (In fact i can't see them on the drive
at all, don't know if Steam removes corrupted automatically)