Original Post
With some help from other posts that I can't recall at the moment I put together a package that allows syntax coloring for fx files in VS2005. The following zip package consists of an fx.reg file that tells VS to treat the fx file syntax similar to a cpp file. There's also a usertype.dat file that further defines the basic hlsl keywords and such. Make sure the path in the reg file matches your VS installation path before adding it to your registry. The usertype.dat file must be placed in the VS executable directory. For me that's "C:\Program Files\Microsoft Visual Studio 8\Common7\IDE". Here's the Zip File -Devin