: Instead of hosting multiple 5GB ISO files for different languages (e.g., English, French, Spanish), a distributor only needs to host one "base" English ISO and several small SVF patch files for other languages.

The tool is primarily utilized by the tech community to distribute various versions of the same software—most commonly Windows or Microsoft Office—without hosting massive individual ISO files.

Because these tools are often distributed through community forums like My Digital Life rather than official Microsoft channels, users should exercise caution. What is svchost.exe? 5 ways to see if it's safe - GlassWire