I love AUCTeX, and use it on an Ubuntu machine all the time. Right now, however, I am stuck with a Windows machine and would like some help getting around a problem. Whenever I try to compile my .tex file with C-c C-c and the file is also open in the viewer, I get the error that "I can't write on abc.pdf".
Of course, I can close the viewer every time I want to compile, but I hope that someone knows how to get around this.