Specifies a Microsoft® Windows® installer condition that must be satisfied (evaluate to true) in order for the component containing this registry key or value to be installed and registered at installation run time. If the Windows installer determines at installation run time the condition is true, then the component will be installed. If the installer determines at run time the condition is false, then the component will not be installed.
An example of a common Windows installer condition is:
VersionNT>=500
This condition stipulates that the component will not be installed unless the installer determines the target machine operating system is Windows 2000 (formerly called Microsoft® Windows NT® 5.0) or later.
Remarks
For a list and explanation of valid conditions, conditional statement syntax, and installer properties you can place conditions on, search in the MSDN™ Library under the topics, Platform SDK, Setup and Systems Management Services, Setup, and Windows Installer Programmer's Reference, for any of these terms: