Not very good at all
It is possible to simply the process by maintaining multiple configuration folders:
In one configuration, you install iRite, then rename that configuration folder to Configration_iRite.
A new Configuration folder will be created, in this one you install HTML Editor.
When you need to use iRite, rename the configuration folder to configuratiuon_HTMLEditor, the rename Configration_iRite to Configuration and vice versa.
This is just unacceptable and it won't be just irite that this will be a problem with. I think you and Ray need to get your head round this and come up with a more realistic proposal.
You can see from the postings of the last few days that there are a lot of people affected by this.