eg:
net use \\server\share /user:domain\kixscript password

If you are afraid that someone will see this information and use it, try making the password look like a command line switch: if the password was "\\domain" etc

I have also tried putting hidden characters in the logon name, but my testing is inconclusive at this time. Kix doesn't seem to handle ALT+255 the same way as DOS :-(

cj