Trend Micro’s PcScnSrv.exe process can be seen spiking often to almost 100% of the CPU.  This issue is caused by the Immunization feature of Spybot S&D.  Apprently the two products do not play well together…in fact, during the install of Trend Micro Internet Security 2007, the removal of Spybot S&D is recommended.  If you do have both products installed, Trend Micro’s recommended solution can be found here. 

The basic steps are this:

1. Open Spybot and go to the Immunize section.
2. Click the undo button to allow all bad products previousely blocked by Spybot.
3. Delete: C:\Program Files\Trend Micro\Internet Security 2007\usrwl.dat
4. Reboot

1. Go to Administrative Tools > Internet Information Services (IIS) Manager.

2. Expand the Server Name directory and then click on Application Pools.

3. Click Action > New > Application Pool.

4. Create a new Application Pool with the following characteristics:

Application Pool ID: OSCE
Application Pool Settings: Use default settings for new application pool

5. After creating the new OSCE Application Pool, right-click on it and select Properties.

6. Go to the Identity tab.

7. Under the Predefined option, select Local System.

8. Click Yes at the prompt.

9. Click Apply > OK.

Next, you would have to set the web site to use that Application Pool:

a. Right-click on web site created and click Properties.

b. Under the Home Directory tab, look for Application Settings.

Click the Remove button to remove the existing application settings.

Click on the Create button. This should re-create the application settings.

c. Still under the Home Directory tab and Application Settings, locate the Application Pool drop-down list and select OSCE.

d. Click Apply > OK.

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