How do you know the system is running programs?

Users questions: How to know the system is running the program, which is normal for? winxp system. In the registry, how can see?
Experts answer: is generally the 2: 1, HKEY_CURRENT_USER * Software * Microsoft * Windo * * wsNT CurrentVersion run2, HKEY_CURRENT_MACHINE * Software * Microsoft * Windows NT * * CurrentVersion Run
  • This information provided by the users.Thanks!