The 'installation diskette' hackcoder refers to was the old EVRSI activation system. Standard starts with 1203 Pro starts with 2022 Mini starts with 1635 Full starts with 2445 Edit: I forgot to list the paths for the XP registry keys: HKEY_LOCAL_MACHINE SOFTWARE Rockwell Software RSLogix 5000.1 Last Version UserInfo Serialnum HKEY_LOCAL_MACHINE SOFTWARE Rockwell Software RSLogix 5000.1 Support ProductID HKEY_LOCAL_MACHINE SOFTWARE Rockwell Software RSLogix 5000.1 UserInfo Serialnum Logix only cares about the first 4 numbers of the serial number. The fix for this is to modify the registry! On 64-Bit systems, these are the keys that need to be modified: HKEY_LOCAL_MACHINE SOFTWARE WOW6432Node Rockwell Software RSLogix 5000.1 Last Version UserInfo Serialnum HKEY_LOCAL_MACHINE SOFTWARE WOW6432Node Rockwell Software RSLogix 5000.1 Support ProductID HKEY_LOCAL_MACHINE SOFTWARE WOW6432Node Rockwell Software RSLogix 5000.1 UserInfo Serialnum Change the serial numbers listed in all 3 of these keys to the correct serial number and then your activation will work.

Rslogix 5000 activation hack