Open Executable Dialog Box: Environment Tab

New

Click this button to enter the environment variable name and value and add it to the list of environment variables.

Select

Click this button to select an existing environment variable and add it to the list of environment variables.

Edit

Select an environment variable in the environment variable list and click this button to edit the name of the variable, its value, or both.

Remove

Select an environment variable in the environment variable list and click this button to remove it from the list.

Append to OS environment

Appends the environment variables in the list to the OS environment from which you invoked the debugger.

Replace OS Environment and set only specified environment

Establishes a unique environment for the executable in which environment variables exist outside of the OS environment.