I install all my applications on a Windows non-root (non-OS) SSD disk.
Do iMatch installs allow for this?
The installer software should allow you to select an install location when you install IMatch for the first time. Not for update installs.
It is not recommended to install applications outside the folder hierarchy designated by Windows for this purpose (c:\program files...) because Windows security mechanisms may not work otherwise, and virus checkers may interfere with applications not started from the official folder.