XP Pro SP 3 firewall blocking UDP 137 and 138 even though exception "File and Print sharing" is selected

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  You are missing some verification from somewhere.

  This link should remind you of the points which had to be verified.

  ---------------

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  http://www.ezlan.NET/Win7/net_name.jpg

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  Windows XP file sharing - http://support.microsoft.com/default.aspx?scid=kb;en-us;304040
  Sharing printer XP - http://www.microsoft.com/windowsxp/using/networking/expert/honeycutt_july2.mspx

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