A chained project does normally exit on successful completion of the build. Check the "Don't close GUI app if build fails" checkbox in the VisBuildPro Project action to not close the GUI app if the build fails.
http://www.visualbuild.com/Manual/vbpprojecttab.htm
Regarding prompting for changes made to the project during a build, see
http://www.kinook.com/Forum/showthre...?threadid=1715