Bah! Nicolas Barry correctly points out that my async agent code
simply doesn't work - if multiple concurrent agent requests are
attempted, some of them will fail for no apparent reason. I assume
concurrent SendMessage() calls don't work in the Windows API, or
some such. So I'm commenting out the async code for the moment
(there wasn't a Windows Pageant that made helpful use of it anyway
yet) and returning to the drawing board.
git-svn-id: svn://svn.tartarus.org/sgt/putty@3756
cda61777-01e9-0310-a592-
d414129be87e