This bug is now fixed. Please read below if you are experiencing this issue.
There are two possible scenarios:
1) If you do
not have the Windows LogOn tool installed.
- Visit
http://www.yubico.com/applications/computer-login/windows/windows-login/ and download the Windows LogOn program. Install the software and configure it. Everything will work out of the box.
NOTICE: the new version of the Windows LogOn tool will be available from the 21th of February 2013 16:00 GMT +1
2) If you have the Windows LogOn
already installed- Download and install the updated COM API from
http://www.yubico.com/develop/open-source-software/low-level-library/ The api are located at the bottom right corner of the page, please select the 32 or 64 bit version accordingly.