Only one instance of Silhouette Studio can be open at a time.
I have not successfully run v3 and v4 on the same computer. (I currently have more than 15 versions I can open on my laptop.) You may wish to take precautions like exporting a copy of your library, creating a restore point, and/or deactivating your upgrade, but I’ve been doing this for years and rarely run into any glitches.
I’ve debated sharing it because it’s possible to mess things up if you don’t know what you’re doing, but I have found it extremely helpful over the years as I have the need to run several versions of Silhouette Studio® while juggling personal use, teaching, and beta testing.
Especially if you want to run a beta edition to try it out and provide feedback to the Silhouette software developers, while also keeping a stable release version to fall back on. If you’re a computer-savvy user of Silhouette Studio® you may want to try this out. Have you ever wished you could run more than one version of Silhouette Studio® on your Windows computer? Mac users can do it easily, but doing this in Windows takes a bit more effort and digging around, renaming folders and paths.
