Start up monitor warning error message about AIM

Whenever I am on internet and keep using the few social websites I receive an error message. Recently I was trying to login into my AIM so that I can start a chat session.
At first it logged in and all of a sudden it threw up an error message:
The program AIM has registered the executable D:AIM95aim.exe-cnetwait.odl to run at system startup.
Do you wish to allow this change?
Yes No
At times I get the same error message when I start my desktop. I am not sure why does it keep asking me to allow this change each and every time. Is there a way I can avoid this error message?
