sorry to necro an older thread, but this is precisely my issue as well. No error message other than "Can not start Online Armor Service" in a big, otherwise empty error window.
I first tried to install this after installing Emsisoft Anti-Malware on my Windows Vista (Home edition) games profile. I installed Online Armor, rebooted as requested and it gave me the error.
After this did not work, I went into the Admin profile, same error.
Uninstalled, rebooted, went back into Admin. Reinstalled, rebooted. Same error.
Closed Windows security software, ran the same process as above. Same error.
I have no other Malware or Firewall software running on this machine right now.
I found this thread and tried to follow the suggested download; link goes to a 404 page, so no such known file or directory.
Do we have a new file I could try, or a different approach I could try, please?