Product Variables

Introduction

The Product Variables page lists all symbolic variables that are defined in your project. Symbolic variables are used for text strings that need to be replaceable, such as the location of system folders (which depend on the target system), product information, and target system information, among others.

In MSI documentation, these variables are called "properties".

You can recognize the variables by their icon, as shown in the following table:

Icon	Description
	Variable contains generic text.
	Variable represents a file or folder path.
	Variable represents a folder alias.
	Variable represents a registry key path.
	Variable represents a registry key alias.

Predefined variables

To help you locate the most appropriate symbolic variables for a particular purpose, the variables are broken down into categories that reflect their recommended usage or purpose. The Alphabetical reference topic contains a full list of all predefined product variables.

• Build-time variables
• Product information variables
• System information variables
• System folders variables
• Registry paths variables
• Internal variables (Tarma Installer)
• Internal variables (Windows Installer)
• User interface variables (Tarma Installer)
• User interface variables (Windows Installer)

Tarma Installer 2.x upgrade notes

Product variables in Tarma ExpertInstall are mostly the same as the symbolic variables in Tarma Installer 2.x. The main differences are:

• In Tarma ExpertInstall all value strings can be localized; Tarma Installer 2.x did not support this.
• Variables that represent installation folder paths are now automatically generated based on the folder's alias; in Tarma Installer 2.x the opposite happened and installation folders were defined using symbolic variables.
• The names of many variables have changed since Tarma Installer 2.x to make them more consistent, more descriptive, and more in line with MSI conventions.
• Many new variables have been added.

For more information, see Advanced - Variables page and Symbolic variables conversion in the Upgrading from Tarma Installer 2 section.