Anyone know why this happens, and how to fix it.
Periodically / intermittently, worker processes disappear from IIS
and also gives error "Category does not exist"
In IIS Manager if you click on the Server
In the Features View scroll down and click Worker Processes
All application Pool Names, Process Id, and running state is completely blank
Gives error "Category does not exist"
There is usually around 10-15 processes there.
I found a slight work around, but any ideas on permanent solution: