Using Tarma ExpertInstall > Symbolic expressions > Product variables

VersionMsi

Reference information
Applies to	Tarma Installer, Windows Installer
Related topics	System information variables
External links	Windows Installer documentation

Description

This variable contains the Windows Installer version number as major.minor[.build.revision]. The last two components (.build.revision) are only present in Tarma Installer.

Tarma Installer sets this variable to the version of Windows Installer that is installed on the target system, if any. Note that this is independent from Tarma Installer's own version number.
Windows Installer sets this variable to its own version number when the installation starts. Note that Windows Installer only includes the major.minor portion and that it adds a '0' prefix to the minor version component. For example, Windows Installer 3.1 is indicated by 3.01 instead of 3.1.

Usage

Usage
How to set	Set automatically by the installer.
How to use	You can refer to this variable as <VersionMsi> (Tarma native syntax, preferred) or [VersionMsi] (Windows Installer syntax). In Tarma Installer, you can use the $vercmp function to compare the MSI version to something else, for example <$vercmp(<VersionMsi>, 3.0>. This is not supported by Windows Installer.

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Tarma ExpertInstall User's Manual - Topic last modified on 21/01/08 11:03
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