Version 0.8.1 of IMAPClient has just been released. This version works around a subtle bug in distutils which was preventing installation on Windows from working. Thanks to Bob Yexley for the bug report.
This release also contains a few small documentation updates and packaging fixes. The NEWS file has more details.
As always, IMAPClient can be installed from PyPI (pip install imapclient) or downloaded from the IMAPClient site.