How to trace into a third party dll with visual studio?

My application is using a third party dll and works fine,

but I'm seriously inte开发者_Go百科rested how things are implemented,

is there anyhow I can trace into the internals of that dll without source code?

Yes,I want to do it right in vs,I'm not familiar with IDA etc at all..

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It's fairly easy: just open disassembly window, and hit "step in" button.