It needs wget.exe and 7zip, which can be found here:
http://users.ugent.be/~bpuype/wget/
http://www.7-zip.org/
you need to edit the file, setting some paths in vars at the head of the script. of course it could also easily be edited to not extract.
CAUTION: When extracting, it will overwrite files without warning.
i set this file as the default browser in SL, works great.
refined or expanded versions are welcome
