Thanks for the info, I’m on my laptop so can’t check the key I was writing to exactly, but basically I was storing the arduino IDE version as the key and the exectable path for arduino.exe for that version
“Registry Key”/Arduino/Version/18.104.22.168 ExePath "C:\ProgramFiles\Arduino1.0.1
My applications need to be able to scroll through all versions of installed arduino so a key is created for each install as above.
Well, I am not particulary fan of adding things to registry. In fact I haven’t added anything in the setup extra to any directory or registry rater than the ultra-required one, like unninstaller.
I am sure that you have more than enough info in the registry to autodetect last version XD