I had a very similar problem, and I found that Kellar's fix worked, but I had to get rid of the extra spaces before and after hte plus mark (+). That in mind, I think the line you want should look something like this:

code:
Shell "%comspec% /c c:\ieupdate\su.exe administrator Copy "+chr(34)+"m:\apps\dss\decision support system.dot d:\program files\microsoft office\templates /Y"+chr(34)+" @WKSTA"

What do you think?