memory leak

Personally I am a fan of the valgrind distribution. Though I don't think there is a MSVC integration.

MSVC's CRT implementation has built in leak detection functionality. Relevant functions include _CrtDumpMemoryLeaks() and _CrtSetDbgFlag().

Valgrind is Linux and OSX only which limits it's usefulness quite a bit. I believe that there may be Windows ports (a quick Google search throws up some likely candidates) but I've never used any of them and can't vouch for them.

One leak detection trick that the mighty Raymond Chen has blogged about is: if you're leaking lots of objects of the same type, just grab a random block of memory and examine it for repeating patterns. That's your leaked object. Knowing what you've leaked can often be all you need to track down the source of the leak.

Ah yes, valgrind isn't windows, sorry. I forgot that as I work in C++ only on nixes, windows is for porting only.

I use visual leak detector, gives more info than the default leak detection in visual studio.