CRM 2011 – Assembly must be registered in isolation

I got an error whilst trying to register a plugin, saying the assembly must be registered in isolation.

I found out something which I had forgotten, basically only Deployment Administrators can register plugins which do not run in isolation mode (e.g. in the sandbox).

The user I was using although was a System Administrator in CRM wasn’t in the deployment managers group so could only register plugins in the sandbox.

luckily for me the CRM in the field blog had a detailed article on the subject which you can read by clicking the link below

http://blogs.msdn.com/b/crminthefield/archive/2011/08/17/error-message-assembly-must-be-registered-in-isolation-when-registering-plugins-in-microsoft-dynamics-crm-2011.aspx

This bit below I found very interesting

In the Security Restrictions section of the following MSDN article it states, “There is a security restriction that enables only privileged users to register plug-ins. For plug-ins that are not registered in isolation, the system user account under which the plug-in is being registered must exist in the Deployment Administrators group of Deployment Manager.“

Register and Deploy Plug-ins
http://msdn.microsoft.com/en-us/library/gg309620.aspx