Is it possible to pass parameters to another software program I want to call from SAS?  I'm trying to call a tool called LEGS which when you click on it it will open a terminal and ask you to input R or F and then your instructions file. Using this I get as far as the terminal asking R or F but I have no idea how to go about inputting the required prompts from SAS-   x start "" "P:\SAS PD\LEGS\G3\LEGS Release.exe";   Any insight is greatly appreciated! ... View more