Lync Attendee Launch Failure

Scott Stubberfield, Microsoft Consultant and Microsoft Certified Master for OCS shared the following issue among the Master community today and gave permission to blog on his behalf.

We ran across a situation today at my customer that I thought I would share.

A user had installed the new Lync Attendee (per user) however it refused to launch. If you looked in task manager you saw it start up but the process exited after 2 seconds. I found a similar bug from last year and it turned out to my case. This user had previously installed and uninstalled a pre-RTM build of the attendee client and apparently there is a known bug in the uninstall process.

Here is the required fix:

The user had old AOC which was somehow not working, hence he uninstalled it, however that did not remove the following key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AttendeeCommunicator

Hence the new OC which was per-user was looking into the per-machine installation directory.

This is a setup bug which does not reproduce any more.

For any of you working with deployments that were part of the pre-RTM programs this could be helpful.

TomL LCSKid