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by Doug Thews.
Original Post: Installing Yukon B2 & Whidbey B1
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Yukon Beta 2 and Whidbey Beta 1 are compatible on the same machine. They use the same major version of the .NET 2.0 Framework (Beta), but there is an installation order needed to get them working correctly.
If you install Yukon B2 first, then Whidbey B1, you're all set. If you've already installed Whidbey B1 and want to install Yukon B2, you'll need to uninstall the .NET 2.0 Framework 2.0 Beta that came with Whidbey B1 and then install Yukon B2 (which will install it's version of the .NET 2.0 Framework).
The problem is that Yukon B2 utilizes a minor version upgrade of the .NET 2.0 Framework. They are backward compatible, but Yukon B2 requires the latest version. The Yukon B2 setup will not overwrite the latest .NET 2.0 Framework if it detects that one is installed during Setup, nor will it attempt to do a side-by-side install of two minor versions of the .NET Framework (by design, I believe). Therefore, you need to make sure you have the latest framework in order to get both products working together on your machine.
As far as I can tell, this installation order has no bearing on previous versions of the .NET Framework or VS.NET installed on the same machine. They all seem to coexist just fine. The only think you'll need to do after installing these products is to tweak your IIS virtual directories to map to the correct .NET Framework, because the .NET 2.0 Framework installation will default all ASP.NET pages to the ASP.NET 2.0 engine. Check out my earlier post on how to run multiple .NET Frameworks side-by-side.
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