This question has been asked many time in many in many guises, here are a few to help out the search engine

Quote Originally Posted by many people
Help - I can't get RR to even open.

RR wants to reinstall every day

AVG showing trojan virus in RoadRunner.exe

SOB.........can't get RR to not show up as a trojan.......

RoadRunner.exe only 700 kb

Getting an error when trying to open rr for the first time

AVG Free Edition REsident Shield and RR

RR Trojan

RoadRunner Updater detected as a Virus!

The answer is no.

Basically there is a webrowser component of RoadRunner that causes a few AV programs to pick up the roadrunner.exe as a Trojan.

AVG is a prime example.

What can I (you) do?

1. Disable your AV program from scanning the RoadRunner folder.
2. Put RoadRunner in your AV's exceptions list
3. Remove your AV program and try a different one. (although eventually I suspect they may all eventually start picking on RR)
4. Send the RoadRunner.exe to your AV co and aske them to remove it from their signatures.
5. Turn off heuristic scanning with your AV program
6. Don't use Road Runner (kidding)

Here are a few threads already opened on the subject
RoadRunner.exe only 700 kb
RR Trojan
Installshield used; Access deined?
RR_Updater.exe Virus Identified

Bottom Line : RoadRunner is NOT a virus. (however it does seem to take most of your day away)