Multisite & Live Writer Configuration / Alternative

Hi All,
I know this is not a specific WPMUDEV related question but i am hoping you knowledgable guys can help or point me in the right direction.
I have recently changed over to multisite, which i am just about getting to grips with.
The only issue i have at the moment is that windows live writer will no longer work. i have done some searching online and most topics on it are a few years old. Does anyone know how i can get it to work with multisite, or is there an alternative to it?
many thanks