I was getting very frustrated that in order to copy files from my SATA hard drive that I pulled from a crashed computer that I needed to connect it to an XP machine and copy the files over via wifi.
My system is 3 computers running Windows XP Professional on a Microsoft Workgroup Network with usernames that DO NOT use passwords. It is used in my home and access is restricted to my family and not the Internet by the personal firewall and router firewalls.
This lack of a user password has caused problems in the past with Task Scheduler not working correctly and I have modified the Registry under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa to change limitblankpassworduse to "0" instead of "1" to make the scheduler work correctly.
I purchased a new terabyte external hard drive that was pre-formatted as an NTFS single partition to use as a backup drive using Norton Ghost.
I regularly have shared the hard drive on one of my computers with the other two, so I am familiar with sharing and Security rights.
When the new drive was added to the main computer either as a USB attached drive or as an eSATA connection, I could read and write to the drive from the main computer. However, when I marked it as a shared drive with full rights to others, I could see it from my remote networked computer but when accessed I would get the message: "<drive name> is not accessible. You might not have permission to use this network resource"
I have tried many suggestions from the web including the ones from Microsoft support. They include: