Unload a Microsoft PowerPoint add-in
On the Tools menu, click Add-Ins.
To remove an add-in from the list and also from the registered list of add-ins in the registry file, select its name and then click Remove.
Unload a COM add-in
How?
On the Tools menu, click COM Add-Ins.
Do one of the following:
To remove an add-in from memory but keep its name in the list, clear the check box next to the add-in name.
To remove an add-in from the list and also from the registered list of add-ins in the registry file, select its name, and then click Remove.
Note Component Object Model (COM) add-ins are typically used by developers.
Note Unloading or removing an add-in doesn't remove the add-in file from your computer.