If your users are having trouble loging out form your servers, getting the message

1 program still needs to close:
(Waiting for) Task Host Window

Then this KB is for you. This will patch taskhost.exe to handle the problem.

From the KB article:

Symptoms:

Consider the following scenario:

• You have a computer that is running Windows 7 or Windows Server 2008 R2.
• You try to shut down, restart, or log off the computer.

In this scenario, the logoff process stops for about six seconds. Additionally, you receive the following message:
1 program still needs to close:
(Waiting for) Task Host Window
Cause:
This problem occurs because the TaskHost.exe process stops handling messages during system shutdown, during system restart, and during system logoff.

Here is the link to the KB.

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Roger Eklund