Failed to save settings - Access to settings.xml is denied
When attempting to change the settings for the RPC, I encountered an issue stating that the app didn't have access to change the settings.xml file. I had to manually edit the file by opening a program as admin, and changing the XML.

Probably the installer not setting proper perms during installation, I guess?
@0x2b00b1e5 You should store user preferences in one of the AppData/Roaming or AppData/Local folders. Permission issues won't be caused at all
Know I'm a bit late to this, but go into C:\Program Files (x86)\fl-studio-rpc\Release and run the FLRPC-GUI.exe as administrator. it'll work just fine when ran as an administrator 👍
You can also just adjust the permissions on the "fl-studio-rpc" folder, so the tool can run it without admin permissions, if you're not comfy with that.
This should be fixed. Preferences should be saved in AppData as @demberto said, but I am dropping this project unfortunately. Feel free to fork and fix.