I see, didnt noticed that eariler. Installers could detect if any JRE is available, then download/install them if needed. (commerial installers like http://www.advancedinstaller.com/ or http://www.denova.com/ does that), if not make a notice to download it from sun's page.
As for whether installer can uninstall other applications, its yes (esp if you have admin privillages in windows). An example is Google pack - http://pack.google.com A batch file can be very written quickly eg.. :: LilypondPackageInstaller.bat start /wait "ftp://blabla.org/java5.exe" start /wait "http://blabla.org/lilypond.exe" start /wait "http://blabla.org/jedit.exe" start /wait "http://blabla.org/lilytool.exe" But can the user might be confused after installers after another installer popups is a question. Maybe setting up a webpage like "Ultimate guide to lilypond on windows" with links to all the installers can be as easy but I thought the flash tutorials http://web.interware.hu/fodber/lilytut/ was quite good already. Joshua >> As for free open source installers, maybe IzPack Java Software >> http://www.izforge.com/ could be used,. >-- begin quote from website -- >IzPack is an installers generator for the Java platform. It produces >lightweight installers that can be run on any operating system > >_where a Java virtual machine_ is available. >-- end quote -- >No it can't.. :-) But it shouldn't be hard to find another one.. > >Anoter question.. Can one deinstaller automatically dinstall other >packages (this one should deinstall JRE (is this a good idea?), jedit >and lilypond).. Perhaps it's easier to write a JS or bat or whatever >script which downloads the installer and launches them in order.. >(with them hopefully not asking "restart computer" before having >finished..) *g* > >Marc _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user