http://blogs.msdn.com/vsofficedeveloper/pages/Office-CLR2-Lockback-Bypass.aspxSummary The Microsoft .NET 2.0 Framework includes a lockback policy that intentionally prevents the .NET 2.0 CLR from being initialized to run when hosted in either the Microsoft Word or Microsoft Excel process space, unless that version of Word or Excelen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/vsofficedeveloper/pages/Office-CLR2-Lockback-Bypass.aspx#7723164Sat, 16 Feb 2008 01:09:41 GMT91d46819-8472-40ad-a661-2c78acb4018c:7723164VSOfficeDeveloper: Known Problems, Bugs, and Fixes<p>Managed code exported via COM Interop may not load correctly inside of Word or Excel VBA if the assemblies</p> http://blogs.msdn.com/vsofficedeveloper/pages/Office-CLR2-Lockback-Bypass.aspx#7724073Sat, 16 Feb 2008 02:05:35 GMT91d46819-8472-40ad-a661-2c78acb4018c:7724073VSOfficeDeveloper: Known Problems, Bugs, and Fixes<p>Managed code exported via COM Interop may not load correctly inside of Word or Excel VBA if the assemblies</p>