How do I transfer add-ons to new system?

Hi,

I have an older version of Kodi running on a Raspberry Pi (Raspxbmc) which is running just how I like it and I have now installed the latest version of Kodi on a Windows PC. I know I can install add-ons from scratch but I can no longer find some of the add-ons that I was running on the Pi. So, I wanted to copy the files from the Pi to the Windows PC. However, when I attempt to do this the add-ons are not recognised on the Windows Kodi.

It isn’t clear to me whether this is because some information is missing from a database somewhere or whether it is because some files have changed format. Could someone please give me some guideance?

Also, is there any documentation and/or videos that tell me how to develop my own add-ons? I have tried searching via Google but I don’t seem to be able to find the wood for the trees!! I’m not sure if I’m just useless at using Google but I can’t seem to find the sort of idiots guide that I’m looking for.

Any help much appreciated.

Leo