Old versions, what can I delete?

[stonecherub]

I am trying to remove junk from my C: drive. Do I need to save anything under IMatch5 or IMatch6? Help tells me I'm using IM2017

[Mario]

Which folders do you mean exactly?

If you uninstall IMatch 5 from the Control Panel (Add/Remove Software) everything that can be uninstalled is uninstalled.

[stonecherub]

OK, I should have known that. Is IMatch6 equivalent to IM2017?

[Mario]

Yes.

You can delete the %PROGRAMDATA%\photools.com\IMatch5 folder to save a few extra KB.
But before make sure that IMatch is not using this folder for your settings database (Edit > Preferences > Application) or any of the Presets folders.