not possible to have hidden section
wat my installer is doing, running installer for mysql and some other applications. and in the end i want to update the mysql database using the update scritps. But in case of sections, as sections execute simultaneouly; it executed the update scripts before the mysql installs. To get rid if it, this is the best solution i found; based on some boolean flag set i used to run the database script in the function .oninstsuccess if user selected to update the database.