刷新开放VS解决方案的环境变量

Using visual studio 2008, I had a solution open and realized I need to install another program that the project I was working on used. I did this with visual studio open and attempted to debug the program, however the environment variables added by the program I installed were not visible. I could not get them to refresh until I exited VS and reloaded the solution. Is there a way to get visual studio to "refresh" its environment variable list without exiting and reloading the solution?Using visual studio 2008, I had a solution open