Let's think about that request for a second.
You have an exe on your system. Malware manages to insert itself into the exe. You want to always allow that code access, no matter what change may have occurred? OneCare uses a combination of the version and a hash to identify the program and stores that to match against any program that requests network access.
I understand the frustration you are dealing with as a developer, but changing the program to do what you (and many others) have requested would be bad. You should probably consider testing your code on a box that you don't care if it is compromised, using the Windows Firewall to protect against inbound traffic. You can do this in a Virtual Machine, too. No, it isn't convenient, but it is safer.
-steve
