Is there a way to run/install a .net business connector without a domain. It is for development only.
Business Connector is only a DLL usable from Visual Studio... You can surely install it wherever you want but without a domain you won't be abble to connect to any AOS. You can use it for development in Visual Studio, but you can't test the code against the server.
You can install it on the server where you plan to run the tests and then copy/paste the DLL file from the install folder to your Visual Studio machine and reference it as usual (from a folder or from the windows assembly).
Be carefull of picking the right one as using a 32 bits version of the library may cause problems if you connect to a x64 server.