http://bugs.winehq.org/show_bug.cgi?id=22580
--- Comment #59 from Dmitry Timoshkov dmitry@codeweavers.com 2010-05-18 02:17:57 --- (In reply to comment #58)
The testcase is worthless as it would just report what we already know. Asking me to find yet another app that has this particular use is too much.
So far there is exactly 0 (zero) apps affected by this problem. Once again, crypt32.dll is a system library (and not an application), and it looks like win9x version of the DLL uses undocumented quirk of RegisterWaitForSingleObject() implementation which doesn't exist on newer Windows versions.
And once again, there is no any justification or need to use win9x version of crypt32.dll under Wine, built-in version works just fine. Try to use it for instance under Vista, then in the case of a bug report it Microsoft, let us know how it goes.
Consider that you don't even want to check your 100% CPU bugs wrt. to this problem.
Feel free to do that in your own free time, Wine is an open source project developed by volunteers. Be our guest.