Running 2 updaters for one app

Hi Wyatt, 

Hope all is well.  been using the app for years, loving it still.

I have a situation where i want most users to run my main app but want some users to run a beta.
Pretty much I either need:
- 2 x client files in different folders
OR
- 2 client files named differently (eg. Main and Beta) in the main folder.

The idea is that i will run the updater and force the main or beta file to be used thus using THAT updater.

The issue with the folder situation is that the “program folder” would then be where the client wys file is sitting wouldnt it?
I want:
/program folder

//Beta/betaupdatefiles
//main/MainUpdateFiles

When i run the update it will either run the /beta or /main wyUpdate,exe 

My issue is that I'm assuming I would then have to statically refer to /My program folder because the update files are no longer in the root directory?

Can you think of a different way of acheiving this? (C# Windows WPF app)