You could use use the ExistsDir InstallScript function to test for the existence of the directory and then set the output of this function to an MSI property using MsiSetProperty. Finally, this MSI property can be used as the condition of your custom...
A complete listing of InstallShield publications can be found at the following link:http://www.installshield.com/ispress/default.aspFor AdminStudio you would most likely want to focus on the following: "The Administrator Shortcut Guide™ to Software P...