[Repeater-Builder] mrs2000

[Randy]

I'm trying to program a mrs2000 radio through the mic connector with ms dos, 
this is a trunk mounted radio with remote head, the code plug down loads to the 
pc but has a message that says the code plug is too new for this application. 
what does this mean? other employees say that they have programmed these radios 
in the past with this pc with dos.