How to Decompile MSI


MSI files are packaged installation files that contain device drivers, data libraries and other application files. In Windows, these files are self-extracting, which means that they do not require any other software in order to run. To view and unpack the contents of these files, however, requires 7-Zip, a third-party file-extraction application.

  • Download and install the 7-Zip application (see Resources).

  • Launch the 7-Zip application.

  • Click the "File" menu and select "Open" from the list of options. When the file browser opens, browse to the folder containing the MSI file.

  • Click the MSI file once to select it, then click the "Open" button to open the MSI file in 7-Zip.

  • Click the "Extract" button on the 7-Zip toolbar to decompile the components of the MSI file to a folder of your choosing.

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