On all Clients, enter the path to the program's executable/run file (1). You can specify a network path. Image RemovedImage Added
Select users of the (external) program (2).
You can also add command-line options (3). When you start an external program, its directory matches the one in which the executable file is located. If there is a file in the startup parameters and it is located in the directory with the program's executable file, you do not need to specify the path to it.