If we have a DLL file and we want to show the Meta Data oF DLL and want to see the method, properties which is used in Dll so you have to do:

Step 1: Click on start button and "Choose All Program"

Step 2: Click on Visual Studio 2010 and Choose Visual Studio Tools

Step 3: Expand Visual Studio Tools and right click on Visual Studio Command Prompt and Run as Administrator.

Step 4: Write (ILDASM) on command prompt of Visual Studio.

Step 5: Go on file menu and click on Open Sub Menu and choose your Dll file which you want to break.

And you can easily get information of DLL.