How to change the value of a variable from WinDbg cmd line?

Question

There's an extern variable defined in the code, which I need to set to true/false through the debugger (for enhanced debug dumps and stuff). What would be the command to change its value from the cmd line in windbg (equivalent to gdb's p flag=1?

Answer 1

You can also use the Edit Memory command e to edit a byte:

eb module!variable value

Note that there's also ew, ed, eq, ep, etc.

-scott

Answer 2

Got it :

?? <module>!<variable>=<value>