General site for FAQ:
http://consumer.installshield.com/ InstallShield message board for Pro 5.5 and earlier (I think this is archive only, not accepting new threads -- the board you're reading now is the best "active" board for those editions of Professional):
http://community.ins....php?forumid=58We are still using Pro 5.1 here, but are slowly migrating projects over to the Developer world. If you're installing Microsoft .NET projects, you might want to think about using the later technology. Otherwise, Pro 5.x is fine, no problem at all with it.