writing user hooks for batch creation of user accounts

I'm working on writing a user hook for batch creation of user accounts.  I'm new to this, and have pieced together 4 different documents on how to do this.  I'm now trying to test my procedure, and my question is - does the User Hook Pre-Processor have to be run every time I need to change a line of code in my procedure?  I don't have access to this procedure so I have to go through the DBA for this.  I'm not clear on all of the steps I have to go through every time I change the code.  Thanks.