Why does it not compile?

In MS Visual C++ 6.0, why do some programs crash when compiled in 'Release Mode'? They work perfect in 'Debug'. I heard something about different memory locations in debug and release compiles. Is there a specific command line tag (/XX) that causes this?

Thanks for any info concerning this matter,

Chilibean

The most common cause is the optimisations performed by the compiler. Debug builds have all optimisations disabled, so that they can be traced accurately. Try using Release mode, but disabling optimisations, or only disabling some of them (under Project Settings->Compile).