http://bugs.winehq.org/show_bug.cgi?id=16420
--- Comment #2 from Jamie Jim.Cooper@sas.com 2008-12-09 10:59:47 --- If you can tell me how to generate the "+crypt32" log, I will be happy to do so.
I found this page for signcode.exe:
http://msdn.microsoft.com/en-us/library/9sh96ycy%28VS.71%29.aspx
I have had my copy "forever"... not sure where I got it from originally, but it has been at least 8 years - before ".NET" became a reality.
The version that comes in the download from that page appears to be the same, and does give the same error.