Q: Strange return from permissions repair

After having a problem with  Software Update acting very strange, (it would seem like it was frozen, but actually was just extremely slow and unresponsive until it did whatever I had just clicked on) I did a permissions repair. I then downloaded the update and did the repair one more time. Both times I got an extrememly long list of changes and both times it included this:

Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repaired.

The Remote Management part bothers me as I don't have anything set up for managing my computer other than from the keyboard. Can someone tell me what this is?

Thanks,

Rich