Here is a quick and dirty bit of Python code that reads Visual Studio 2010 color scheme settings files and prints the equivalent Vim highlighting commands to standard output.

The code uses Python’s built-in Expat parser module with a simple element handler that tries to match a setting item name to a known list of color groups and then extracts the color and style information. There’s basically no error handling performed and the code is only intended to process settings files containing only color information.

If you need to convert the other direction, from Vim to Visual Studio, David Mohundro wrote a PowerShell script that may be useful.