I assume that will work on XP; ftype and assoc are still there, and from their /? help, I assume they still work the same way. (Interestingly, the help for ftype shows an example with perl). It will /not/, however, work on 9x/ME, which does not have ftype/assoc.
However, you can do that step via Windows Explorer's Tools/File Options, on the File Types tab. (This is with IE6; it tends to move around.)
Warning: Unless otherwise stated, code is untested. Do not use without understanding. Code is posted in the hopes it is useful, but without warranty. All copyrights are relinquished into the public domain unless otherwise stated. I am not an angel. I am capable of error, and err on a fairly regular basis. If I made a mistake, please let me know (such as by replying to this node).
