Problem: If you having problems with CRM 2011 Outlook client configuration wizard – and you get “removing the organization configuration” error. In logs (located C:UsersyourusernamehereAppDataLocalMicrosoftMSCRMLogs) – you see this message Error Exception : Value cannot be null. Reason: The CRM client uses incorrect CRM server address stored in the Registry (for example it happened after CRM 4.0 upgrade). Solution: In registry – ComputerHKEY_CURRENT_USERSoftwareMicrosoftMSCRM