Comments on: Why not to use Visual Studio 2003 (.NET Framework 1.1) for developing Office extensions

By: Yuri Astrakhan

Yuri Astrakhan — Wed, 24 Mar 2010 15:07:31 +0000

Andei, thanks for the answer. Other than the mixed mode assemblies, do you foresee any difficulties when both .NET CLR 2.0 & 4.0 are loaded at the same time?

By: Andrei Smolin

Andrei Smolin — Wed, 24 Mar 2010 14:41:20 +0000

Hi Yuri,

In fact, I still don’t have a clear picture of this feature of .NET Framework 4.0. When I complete the puzzle, I’ll tell you more about this. But one thing has caught my eye: as far as I understand this feature doesn’t relate to using mixed-mode assemblies. I expect them to work with no problems.

By: Yuri Astrakhan

Yuri Astrakhan — Mon, 22 Mar 2010 14:16:23 +0000

Andrei, could you talk a bit more about the .NET 4.0 framework compatibility. From what you know about it, will 4.0 load seamlessly side-by-side with 2.0 inside the same Excel process? Also, are there any restrictions with using mixed-mode assemblies (C++/CLI), useLegacyV2RuntimeActivationPolicy=”true” startup attribute? Will the loading order affect it?

Lastly, does XLL loader approach solve these problems in a different way?

Thanks much!