Recently I had a harrowing experience trying to add a front end server to existing install. The existing CRM 2011 setup had UR 12 rollup update applied on the Front End, Back End and SSRS Server. When trying to install the front end role on a new server, I kept getting the following error in the Installation Wizard: "The Product key is not compatible with installed version of Microsoft Dynamics CRM". Searching for it in the web, I found a solution to the problem, which effectively adds...(read more)
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