Windows 7 have .net 3.5 which is backward compatible with 2.0 which you need. For some application uninstallation .net 3.5 + installation 2.0 + installation ms crm outlook client and when it's working upgrade to .net 3.5 should be working.
The issue accured with the Dutch clientsoftware on a German windows. The problem did not accure with the German clientsoftware.Microsoft Business Solutions Partner
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