#=1)When Command Extensions are enabled they change the behaviour of various standard commands such as CD, MD, DEL etc. You can enable/disable Extensions with this tweak.\nTo get specific details, type "commandname /?" to view the help at the prompt.
#=\n\n2) Determines whether the command processor supports delayed expansion of environment variables. By default, the command processor expands variables when it reads a line of text. However, with this tweak, you can include variables in conditional statements and prevent them from being set before they are tested. ex:- echo !PATH!