Windows XP sometimes does not ever connect to eBackpack and the end user may get a system error 67 -- this is a known bug in Windows XP.
To fix / adjust, please see the following article related to issues in the NetBT driver.
You can increase the value of the LmhostsTimeout registry entry to increase the timeout interval of NetBT queries to the Lmhosts file and to DNS. You can use this method to give more time for NetBT queries to resolve the FQDN of the remote computer.
To modify the value of the LmhostsTimeout registry entry, follow these steps:
Click Start, click Run, type regedit, and then click OK.
In the left pane, locate and then click the following registry subkey:
In the right pane, double-click LmhostsTimeout, type a value that is larger than the current value in the Value data box, and then click OK.
Note If you do not find the LmhostsTimeout registry entry in Registry Editor, create a new registry entry. To do this, follow these steps:
In the left pane, right-click the Parameters subkey, point to New, and then click DWORD Value.
Type LmhostsTimeout and then press ENTER.
Double-click LmhostsTimeout, click Decimal, and then type a time in milliseconds between 1000 and 4294967295 in the Value data box. Click OK.
eBackpack suggests using 20000
Note The valid hexadecimal base range for the LmhostsTimeout entry is 3E8 to 0xFFFFFFFF.
Quit Registry Editor.
Restart your computer.