how to write text file to root of HD

[RGould8]

I'm having a rough time trying to get Revolution to write a text file to the root of the user's hard-drive.  Wouldn't it be something like this?

put "\" & line 1 of the volumes & "\filetowrite.txt" into filetowrite

open filetowrite for write
write "test" to file filetowrite
close file filetowrite