Convert CAL to MST

Understanding CAL and MST file formats

CAL files are raster image files associated with the CALS (Continuous Acquisition and Life-cycle Support) Type 1 format, commonly used in government and military documentation for storing monochrome images such as scanned blueprints and technical drawings. MST files, on the other hand, are Windows Installer Transform files used to customize the installation of software packages (MSI files) by applying configuration changes.

Can you convert CAL to MST?

Direct conversion from CAL (an image format) to MST (an installer transform file) is not possible, as these formats serve entirely different purposes. CAL is for images, while MST is for software installation customization. If you are looking to embed a CAL image into an MSI installer or use it during installation, you would need to include the CAL file as a resource within the MSI package, not convert it to MST.

Alternative solutions

If your goal is to use a CAL image within a Windows Installer package, consider these steps:

• Convert the CAL image to a more common format (such as PNG or BMP) using an image converter.
• Include the converted image in your MSI package using a tool like Advanced Installer or WiX Toolset.
• Create or edit an MST file to reference the image or configure installation options as needed.

Best software for CAL image conversion

To convert CAL images to a standard format, use XnConvert or IrfanView:

• XnConvert: Supports batch conversion and CAL format. Use File → Add files, select your CAL file, choose the output format, and click Convert.
• IrfanView: With the appropriate plugins, open the CAL file, then use File → Save As to export to PNG, BMP, or JPG.

Best software for creating or editing MST files

For MST file creation and editing, use Orca (Microsoft's MSI database editor) or Advanced Installer:

• Orca: Open your MSI file, then use Transform → New Transform to create an MST file with your customizations.
• Advanced Installer: Provides a user-friendly interface for editing MSI and MST files, including adding resources and custom actions.

Summary

There is no direct CAL to MST file conversion due to their fundamentally different purposes. Instead, convert CAL images to a standard format and include them in your installer package, then use MST files to customize the installation process as needed.