Transport Service Stopping

Jul 11, 2009 at 6:54 PM

I am getting this error

The creation of an agent factory for the agent 'CatchAll Agent' failed with error 'Failed to create type 'CatchAll.CatchAllFactory' from assembly 'C:\catchallagent\CatchAllAgent.dll' due to error 'Could not load file or assembly 'file:///C:\catchallagent\CatchAllAgent.dll' or one of its dependencies. Access is denied.'.'. Verify that the corresponding transport agent assembly and dependencies with the correct version are installed.

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running as administrator any advice would be greatly appreciated


Aug 18, 2009 at 2:01 PM

Try adding the "NETWORK SERVICE" permission on the two files.


Alternatively, install the agent along with the other Exchange agents:-

Eg:- C:\Program Files\Microsoft\Exchange Server\TransportRoles\agents\catchall

When I did the above, it automatically added the "NETWORK SERVICE" permission to both files. You'll need to adjust the install procedure as follows:-


install-transportagent -Name "CatchAll Agent" -TransportAgentFactory:CatchAll.CatchAllFactory -AssemblyPath:"C:\Program Files\Microsoft\Exchange Server\TransportRoles\agents\catchall\CatchAllAgent.dll"


enable-transportagent "CatchAll Agent"

net stop MSExchangeTransport

net start MSExchangeTransport


If you are having issues (and you want to uninstall the CatchAll agent):-

net stop MSExchangeTransport

uninstall-transportagent "CatchAll Agent"

net start MSExchangeTransport



Hope that helps!

Semple1 :-)