The MST File Viewer (MSTView.exe) enables you to view customizations a transform (MST file) makes to a user's computer. Transforms are created by using the Custom Installation Wizard.

To use the MST File Viewer, you must supply it with the path and file name of the MST file you created with the Custom Installation Wizard. The MST File Viewer is not a separate application — instead, it reads the MST file and creates a plain-text file containing readable content. The information is then displayed through the Notepad text editor.

Install the MST File Viewer

The MST File Viewer is automatically installed on your computer when you install the Office Resource Kit (orktools.exe). You can find this downloadable file on the Office XP Resource Kit Downloads page.To locate the tool after the installation, click the Start button, point to Programs, point to Microsoft Office Tools, point to Microsoft Office XP Resource Kit Tools, and then click MST File Viewer.

When you run the tool, the Windows Installer Transform Viewer dialog box is displayed. You then need to specify both a Windows Installer base package (MSI file) and the transform you want to view (MST file). After you have selected the files, click View Transform to display the text file created by the MST File Viewer.