Tool for run-time errors and memory leaks detection

Hi!

Created application is working toooo slow, looks like there are a lot of memory leaks, because the app does not use huge resources, and have no many variables. So, please, can you advice some good tool for run-time errors and memory leaks detection in Visual Studio C++?

Thank you!

vld and msdn for starters. Remember there is wealth of information up there.

And what about Deleaker
One friend advised me it today.

We've been using this one http://www.glowcode.com/

The best way to avoid memory leaks, of course, is to write code in such a way that they're impossible----eg, use vectors rather than dynamic arrays, put the result of every new into a smart pointer immediately, etc.