I am trying to add a custom accelerator to the table using the IAcceleratorTable.Add() method. This method returns True if successful and False if not. It seems that there are some keys that can be successfully added to the table and others that cannot. For instance, I can add an accelerator for the semicolon key, but not the A key. This is even after I have looped through the table and deleted each accelerator. Can anyone explain this?