It does sound like some sort of network access that is slow or timing out, or perhaps some monitoring process (anti-virus, etc.) that is interfering with VBP. The only file access that would normally occur on exit (and typically only if some data or setting was modified during the session) are:
* Write user options and GUI layout info (local registry/file system)
* Write modified application data files [1]
Some suggestions:
* Use FileMon [2] filtered on VisBuildPro to see if there are any network reads/writes on exit.
* Try using the console app [3] rather than the GUI app to see if it makes a difference.
* Check the Windows Event Viewer to see if VBP reported any errors at the time of exit.
[1]
http://www.visualbuild.com/Manual/co...ationfiles.htm
[2]
http://www.sysinternals.com/Utilities/Filemon.html
[3]
http://www.visualbuild.com/Manual/consoleapp.htm