Why can't I swap IR remote receivers?

[[U]ber|Noob]

I have two IR remote controls and receivers but the receiver for the most important pc has broken (it's generating gibberish) so I tried to connect the other receiver instead but it will only work with the remote it came with.

The other remote control was specifically set up for that pc, is there an easy way to get a new receiver or use the one I have with the existing remote.

They are both non branded remotes.

 

[The Lurker]

Let's start with who makes the receivers and specifically more info regarding the remote that seems to be married to the receiver.

 

[[U]ber|Noob]

It's ok I fixed the receiver it came with it was a program issue.

One was a MCE remote the other one was a PC type remote control.