[ᒪeumonic]

My suggestion would either be an integer or a boolean value and use a do-while loop.

Code

Boolean booleanLoop
  Do Until booleanLoop = false
    [code here]

and then in the button code, use

Code

booleanLoop = false

Obviously this isn't, or shouldn't be real code. It is just an idea to get you started.

~Virtuous

[Reject]

Use a timer. Then when the button is press just do

timer1.stop

Btw, I made the skype crasher and it's not exactly easy to program, good luck.
P.S. You're not going to be able to code one better than me, about 4 people have tried.

[Deceptive]

P.S. You're not going to be able to code one better than me, about 4 people have tried.

Challenge accepted to the max. Going to post it open source.