I tried to start the 'Windows Process Activation Service' in services.msc for a new windows2012 server and I was facing the error:
windows process activation service not starting error 3
Click Start, click Administrative Tools and then Server Manager. In the left navigation pane, right-click Features, and then click Add Features. On the Select Features pane, scroll down to Windows Process Activation Service.
The Windows Process Activation Service (WAS) manages the activation and lifetime of the worker processes that contain applications that host Windows Communication Foundation (WCF) services. The WAS process model generalizes the IIS 6.0 process model for the HTTP server by removing the dependency on HTTP.
For me, I didn't have ConfigIsolationPath
in my registry, but the Windows Process Activation Service was looking for c:\inetpub\temp\apppools\
, which I did not have. Creating this folder got things going again. This article was very helpful in tracking down the problem, "Windows Process Activation Service (WAS) Is Stopping Because It Encountered An Error".
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