Enable Run command in windows vista/7

My friend recently shifted from windows XP to windows vista .But he found out that da run command is missing in windows vista.He asked me to fix it .
I suggested him  u can still press win+r to get the run dialogue box anyhow i thought of fixing it for him.I told him to enable the run dialog by right-clicking on the Start Button, selecting Properties, and then clicking Customize on the dialog window that appears.
After clicking customise button "Customise start menu" window opens now check the Run command box  .

Its done as simple as that.