This could be an issue with the user account hot having rights to start a Comms object. Yes, even if that account is part of the local machine Administrator Group (hate those polices).. You will have to go into Component Services and give them permissions. Edit default for both and add the user.
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1. Setting the permissions for the User in component services(administrator Tools -> component Services->Computers->my computers->properties->com security-edit default ) add users and provide the permissions.