If you are running Windows Server 2003 or a pre Windows Server 2008 R2 build then please refer to this article: http://www.sharepointassist.com/2009/01/27/61738644-f196-11d0-9953-00c04fd919c1-launch-permissions/ . However, if you are running Windows Server 2008 R2 or higher follow the steps below to correct the Event 10016 DCOM error 61738644-F196-11D0-9953-00C04FD919C1 related to the IIS-WAMREG Admin Service.

Always test these changes in your development and staging environment!!!

The DCOM Errors will appear in the System event log as Event 10016

Normally, to correct this problem  you would simply open component services and fix the problem http://www.sharepointassist.com/2009/01/27/61738644-f196-11d0-9953-00c04fd919c1-launch-permissions/

You don’t have rights with R2 because only the trusted installer has rights to change the security on this component.

Launch regedit

Accept the UAC warning

Type F3 and search for the following string: 61738644-F196-11D0-9953-00C04FD919C1 related to the IIS-WAMREG Admin Service.

Right mouse key on the key in the left hand pane then select permissions (do NOT change anything yet) and press the Advanced button

On the advanced security settings screen

1. Select the Owner Tab
2. Select a user in the “Change owner to:” box
3. Check the “Replace owner on subcontainers and objects”
4. Press apply

Now on the properties tab you may grant “Full Control” to the Administrators or another appropriate group

Now launch component services and locate the IIS WAMREG Admin Service

On the properties screen for the service

1. Choose the Security tab
2. Press Edit on the Security tab
3. Press Add on the Launch and Activation Permissions window
4. Choose the appropriate user which is most likely your Application Pool account

Grant the user Local Launch permissions and press OK

That’s it, you should no longer see the errors in your System Event log

Popularity: 12% [?]