Connect is a client, it shows Lemmy content and let you interact with them
Handshake is an account synchronizer, it syncs multiple accounts so you can keep accounts across instances with the same communities and soon saved and banned content
I'll provide the .exe tomorrow, you can download the source and compile to windows also but you would need to install flutter which is a pain in the ass
I'm sorry it happened, it definitely should not do it, could you describe the steps you made to trigger this behavior? So I can patch it ASAP?