If you install more than one version of SAM on your computer, you may need to create separate icons for the different versions. Also, when you try to start SAM by double-clicking on a file name in Windows explorer, Windows may start a different version of SAM than you intend.
If you want to keep more than one version of SAM on your computer, you should consider starting SAM and then opening files using SAM's File menu so that you can be sure of what version of SAM you are using.
In Windows, you can find the different versions of SAM in the c:\SAM folder. Each version is stored as a completely separate application in a folder with the version number as its name.
Best regards,
Paul.