[Bug 5423] AOL AIM won't install; CryptVerifyMessageSignature stub not enough?

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=5423

------- Additional Comments From [e-mail]  2006-20-06 17:49 -------
The attached patch confirms that CryptVerifyMessageSignature is the problem. 
Without it the application quits immediately after calling
CryptVerifyMessageSignature.  With it the app makes a couple more calls to
verify the (NULL) certificate passed to it.

Fixing this will likely require implementing CryptSignMessage (to understand the
format) and CryptVerifyMessageSignature.