Thanks , here is an article on how to fix Performance counters http://support.microsoft.com/default.aspx?scid=kb;EN-US;300956
For the WmiApRpl counter you can run the following .
1. Open a Command Prompt window.
2. At the command prompt, type cd %Systemroot%\System32 , and then press ENTER.
3. At the command prompt, type findstr drivername *.ini , and then press ENTER.
4. Look for the .ini file for drivername = WmiApRpl in the list.
5. At the command prompt, type the following line, and then press ENTER: lodctr inifile where inifile is the name of the .ini file for WmiApRpl
6. If you have any other errors with counters repeat step 5 for each .ini file in the list.
7. Restart your computer.
After the reboot test WebPi.
If it still hangs at this point then I would like to look at the process closer by gathering a memory dump of the process . If you get to that point can you email webpi@microsoft.com att Richard .
Thanks for your testing on this.
Richard