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#11
Another possibility is to use a shortcut that starts the program with runas.
Here is a tutorial (it works with Win 10):
Run as Different User Shortcut - Create for Specified Program and User - Windows 7 Help Forums
I use this on my home PC with MS Office Outlook 2010.
Then it doesn't matter what Windows account I'm logged in with when i run Outlook.
I haven't used it with more than 1 user using Outlook at the same time, i don't use my PC that way.