stop the current build from scheduled tasks

[ktak]

I am using MS Scheduled Tasks to run the build with this command :
"VisBuildPro.exe" /b E:\BuildScripts\AutoBuild.bld

The build runs perfectly. The problem is when i want to stop the build. (Right click on task > End Task ). It doesn't close VBP. Instead a prompt asking "Do you want to stop the current build?" comes out. Also even during the prompt is visible, the build keeps continuing.

Is there a way to 'force' close/kill visual build pro when it received the end task call?