Hello Teun,
Thank you for your reply.
I installed DI API 32-bit, changed the path to JCO to point towards the (x86) path. It now complained about the username and password for the B1i user, so I changed the password and changed it in the integration administration configuration and the connection is now succesful.
I then launched SAP and no longer had an error upon login. When attempting to start a cockpit window, it asked for the installation of Flash player. Since I'm on Windows 2012 R2, which comes with Internet Explorer 11, it just says that Flash Player is embedded in the browser now. But since I'm on the server version, it's not, so I had to install Desktop Experience through Role and features.
Anyways, it's all functioning well now.
Last question; Why does it not work with DI API 64-Bit when both 32 bit and 64 bit comes with JCO?
Kind regards,
Thomas Schmidt