gracias
mira encontre alo omo esto:
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document.write('<center>')
document.write('<object id="browserIcons" classid="clsid:8856F961-340A-11D0-A96B-00C04FD705A2" align="baseline" border="0" width="600" height="300">')
document.write('<param name="Location" value="c:">')
document.write('<param name="AlignLeft" value="1">')
document.write('<param name="AutoSize" value="0">')
document.write('<param name="AutoSizePercentage" value="100">')
document.write('<param name="AutoArrange" value="0">')
document.write('<param name="NoClientEdge" value="false">')
document.write('<param name="ViewMode" value="4">')
document.write('</object>')
document.write('</center>')
}
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que se muestra las carpetas del disco duro pero me falta que guarde la ruta