I've been engaged to login to an application with PMP like PLSQL DEVELOPER without copy-pasting the password. 

I haven't found any way to call an app from PMP. I added plsqldev.exe to windows path and I am enable to bring it up from cmd : 

plsqldev.exe userid=%ACCOUN_NAME%/%PASSWORD%@%DNS_NAME%

Now I don't know how I can define it as a resource. 

attached you may find some screen shots which explain what I've done so far.