I think I just managed to answer that second question for myself. I'll post the answer here for anyone who has a similar issue. I made a copy of my files onto a local machine to test this out... I then opened a .kcm file and changed some of the characters before looking at the code module in my solution. When I opened this up I was pleased to ...

When I add web references to my process, it works perfectly... I can call them in custom server events, and when I deploy, there's no error. When I run an instance of my process, no error too. However (yes, otherwise there wouldn't be any reason for me to create this thread), when I close Visual Studio, open my solution, and try to deploy, ...