MSIViewer is a freeware MSI viewing application that's easy-to-use.
Here are some screenshots to illustrate the features and user interface of this application:
With this program see summary information, properties, files. Screenshot of MSIViewer - 1193px · 1010pxView Windows Installer (MSI) files contents. Screenshot of MSIViewer - 1193px · 1010pxDisplays the summary info, properties, files and registry entries for MSI files. Screenshot of MSIViewer - 1193px · 1010pxMSIViewer: User interface. Screenshot of MSIViewer - 1193px · 1010px