why do I need Application.EnableCancelKey = xlDisabled

[AlexanderBB]

I've been working on something for several days when suddenly I get error Code execution has been interrupted
Click debug and you can step through the code without any errors.
After mucking around for ages including a widows reboot I Googled and found
The solution for this problem is to add the line of code “Application.EnableCancelKey = xlDisabled” in the first line of your macro. This will fix the problem.
And they're right - it does. Take it out and the problem reoccurs.
But why? I never needed it until now. Anyone know what has changed/happened?

 

[Logit]

It probably depends on the rest of your code. If you are willing, post all of your code for review.
Or it might be the result of a recent Windows update?

 

[AlexanderBB]

Thanks @Logit, i would have posted my code, but it was depended on local files.
I'm pretty sure I have resolved it, but without knowing exactly why. I must have have something invisible on the sheet and after selected and deleting a whole
range of empty rows, I no longer need that xlDisabled instruction.