I discovered it as part of the GEGeek ToolKit. You may want to change the default language from german to english in the "Language/Sprache" menu. IMHO so far this is the most convenient tool for quickly backing up and setting multiple services states.
Review: https://www.ghacks.net/2010/09/04/servi ... anagement/
Home: http://royalfool.de/ServicesSuite.html
Portability: Not tested.
Services Suite
Re: Services Suite
Just tried it out, seems quick, easy and pain free. But the ability to export easily is really nice.
Re: Services Suite
Writes to \AppData\Local\Gökhan_Caliskan\ ... but the settings are so few and so minor, so this might still be considered portable. Unfortunately, this was last updated in 2010 so I don't know how well it works on Windows 10.