Port 139 can be open if a share access is disabled too, and this is not metter for security...it is dangers if you have netbio enabled, you just check this:

1. type winipcfg in start, run, hit enter and you see your IP

2. In Ms-Dos type nbtstat -a IP

3. If you see in < > number 20 like <20> that means your share acces is enabled and you must properly configure you comp in control panel..
Thats all...

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