Thanks to tall dude I now understandwhat an MSI files is. I need to know one additional thing:
When I download an MSI file from download.microsoft.com what do I do with the file in order to make use of it? If it was an EXE file I would doubble click on the file, thereby launching it. The program would do the task of setting up the software on the PC. What do I do with the MSI file?