Build C# program low priority in VS 2005?

It was possible in VS 6 (VC++ apps, not .NET) and VS 2003.NET (all apps) to
edit the binary file "vcspawn.exe" so that the process was launched with
LOW_PRIORITY. This then did the build in low priority (as seen in Windows
Task Manager) and the rest of the system was nice and responsive.

Is this possible in VS 2005? I note that during a build, there is only the
devenv.exe process running (no vcspawn.exe is launched) so it might be more
tricky. You'd presumably have to edit the binary code for devenv.exe itself
so that when the "Build" thread was launched, it got given a LOW_PRIORITY.

Thanks,
Alain