When using windbg on an exe:

Common WinDbg Commands (Thematically Grouped)

r $peb - gives PEB address

dt _PEB @$peb - dumps PEB for running process. -r for recursive

dt [any structure] [corresponding memory address] - get a table of the struct and the corresponding memory locations for the properties

https://www.youtube.com/watch?v=8oaEAPC84gc

WinDbg Cheat Sheet for .NET Developers

Look at WinDbg Commands For Advanced .NET Debugging