You can have Sanbox Runtime execute a program on its host machine using the Run Process Node.
Path: Qualified or relative path to the process to be executed.
Arguments: Arguments to be passed into the process upon execution.
Wait For Close: Checking this box will cause the Run Process Node to wait until the process ends before it outputs.
Redirect Standard Output: Checking this box will have the Run Process Node output the standard output of the process as a string. The Run Process Node must wait for the process to close to achieve this functionality.