Is it just my installation, or is WinCV missing from the latest version of .Net? Granted, I can still use the old WinCV by changing the config file, but why was such a useful tool pulled from VS2005?

If you've never used WinCV, check it out for VS2003 and prior version. It essentially lets you search the framework for a certain keyword. For example, if you want to find out which namespace "Registry" is in, type it in, and see the entire implementation. By using the configuration file, you can add additional assemblies for WinCV, to search your own libraries or those of third party vendors.