Is it possible to put up a compiler message box for a fixed short time and have it disappear without having to press anything?

[I notice that code-signing the installer does something like this - which is actually quite useful, because when it appears I know at least my script has got as far as writing the installer executable.]

The reason I ask is that I am using (the incredibly useful) command-line compilation more and more, with useful batch files like:

start /wait sbuilder.exe /c %prj%\languagePlugIn09.sb6 /R "Dutch"
start /wait sbuilder.exe /c %prj%\languagePlugIn09.sb6 /R "French"
start /wait sbuilder.exe /c %prj%\languagePlugIn09.sb6 /R "German"
start /wait sbuilder.exe /c %prj%\languagePlugIn09.sb6 /R "Italian"
start /wait sbuilder.exe /c %prj%\languagePlugIn09.sb6 /R "Spanish"
start /wait sbuilder.exe /c %prj%\languagePlugIn09.sb6 /R "Swedish"

(which builds all my language module plug-in installers in one go). It would be nice for it to flash up a message each time (briefly) without me having to press "ok" as I do now.

Dave