World of Warcraft game launcher made with Sciter engine - https://sciter.com/about/. this launcher is capable of quick swapping realmlists, account logins and ofcourse launching your Wow.exe
Tested on windows 10 with WoW TBC & WoW WotLK
You can bundle an exe yourself using https://quark.sciter.com/ or download one from this repository here - DOWNLOAD x32 x64 . to report bugs or request new features - create an issue here