This can possibly be Stopping you from deploying things?
There is a backdoor way, and I do not recommend this in
production unless it’s your only option.
If you know the back end of BizTalk and the databases, all of
these instances, are stored in the messagebox database. You need to go in here
and remove them, all of a sudden they disappear.
First we need to find the instance we want to remove.
Get the instance ID from here.
Go off to the Message Box Database, in the instances table
are all of your current instances, its best to only remove the one you are
looking at.
To remove it, simply delete the row.
The instance is now gone from the admin console.
Another trick, is isolated adapter instances, typically have
the same class id. Or in the table, the uidClassID.
You can get the class id, and delete ALL instances of
isolated adapter, by using uidClassID as your parameter.
On all BizTalk environments I have looked at, this class ID
seems to be the same.
Use this method with care, it is unsupported, and you do it
at your own risk, usual disclaimer.