Have you tried useing a .bat file?? I use hma vpn for certain sites and have to use .bat files as telling zp to run the exe anyother way causes it to spit out a error.
Open notepad, get the directory to your programs exe: C:\\user\desktop\name.exe
save as, change the drop down menu to save as "all files" and name it file.bat
Add a run programme step to your template and point it to the bat file, in that step there is 3 fields. top is where your bat file is put, second is the command and 3rd is the timeout, for the timeout set that to 20 roughly and decrease it depending on how long your programe takes to load, for the command you will have to do a bit of reasearch. For hma vpn I use -connect and -disconnect to get a new i.p