Hello kalandipaital1989,
I'm thinking when the lisp Routine starts it reads a text file and it must be blank or has the same username, then overwrites the file with the username and date&time. When the program is finished it overwrites the file as a new blank file.
A different computer runs the Routine and it reads the text file but the username does not match so the Routine displays "Can't proceed, In use by another user: xxxxx at mm:dd:yyyy hh:m:ss" and exits.
However, my question would be how critical is it to lockout other computers from running the same Routine?
1. There may be a time someone can not run the Routine because the station stopped working with the password screen lock or out of the office. Does this person have to wait? Or can a person select an option to take ownership of the lockfile by overwriting with their username and date&time?
2. Does running the lisp Routine in multiple drawings on same computer the cause any problems?
This situation would be like editing an excel spread sheet, by read-only for others until the person editing the file exits.
Scott U