I have seen this problem before.
I am sorry we have not been able to address it yet.
I am pretty sure it has something to do with multibyte character sets.
I do not have an international version of windows.
A workaround is to make a directory called Program Files and
move your c74 folder there. This problem may go away with the
next version of max since the c74 folder is being moved to within the
application folder. Sorry I don't have a magic bullet right now.