Save Session allows you to save the current virtual memory information so that you can inspect it in the future or send it to a colleague for inspection.
To save a session, choose File menu 
Save Session...
A Microsoft file browser dialog is shown. Choose where you'd like to save the session.
When the session is saved all the virtual memory information, dll names, thread names, page fault information that are in the session when are saved to the file.
You can keep this data for future reference, provide to a colleague for examination or send to a vendor to help debugging a product.
File extensions
32 bit session files have extension vvm.
64 bit session files have extension vvm_x64.
