In an InstallScript project, you would need to use the Objects view to add the NT Service object to your project. You can download this object from the following page:
http://www.flexerasoftware.com/produ...-utilities.htm
(Click the 2008 tab on that page. Then download and install the item called InstallShield 2008 InstallScript Objects. When you do that, the NT Service object will be available in the Objects view.)
Debbie Urman - Staff Technical Writer - Flexera Software: InstallShield/InstallAnywhere