RSLogix Keydisk
Hello,
I didn't use RSLogix for about 1 year now, but I used to make a backup copy of the license as following:
In the root of the C drive you will find a hidden read only file, named EVICOM.SYS (or beginning with EV*.SYS).
The trick is that the dos volume number of the harddisk is stored in this file. If the file is copied to an other computer, the number does not match, and an error will appear.
Copy this file to a backup directory.
Remove the readonly and hidden attributes (from dos box type: attrib -r -h ev*.sys).
Write down your volume ID number; it will be given to you if you type in VOL <CR> on the dos prompt (for example ACC8-67C4).
Open the ev....sys file with a hex editor, and locate the dos volume number with the hex editor. Mark the addresses.
Next, copy the hidden read only file c:\386SWAP.PAR to the backup directory.
Copy these two files to the root dir of the computer from where you want to run RSLogix.
On the new computer, again find out what the dos vulume number is. Open the ev....sys file with the hex editor, and replace the old volume number with the new one.
Reset the file attributes of ev....sys back to read only and hidden.
That's it.
The original license can be stored back on the original disk.
Remember: only use this procedure to make a backup copy of the license!