If you have many projects that use VSYASM, you can put the three files mentioned above into MSBUILD’s build customisation directory which is typically at:

C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\BuildCustomizations

VSYASM will then always be available in the Build Customisations dialogue. An alternative way of doing this is to put these files in a convenient location and then add the path to this location to the “Build Customisations Search Path” item under “VC++ Project Settings” in the Visual Studio 2010 Options dialogue.