iTunes displays -50 error message when syncing iPod on Windows XP

iTunes displays -50 error message when syncing iPod on Windows XP

Resolution
Solution 1
This symptom may be caused by an issue with the digital signing of Windows XP drivers. Following the steps below to reregister several .dll files mentioned below may resolve this issue. Before proceeding however, try to restore the iPod using the latest version of iTunes.. If you are unable to restore it or the symptom reappears, then follow the steps below:

Disconnect the iPod from the computer and close iTunes.
Highlight all of the following 10 lines of text that begin with regsvr32 and then choose Copy from the Edit menu of your web browser:
regsvr32 /s softpub.dll
regsvr32 /s wintrust.dll
regsvr32 /s dssenh.dll
regsvr32 /s rsaenh.dll
regsvr32 /s gpkcsp.dll
regsvr32 /s sccbase.dll
regsvr32 /s slbcsp.dll
regsvr32 /s mssip32.dll
regsvr32 /s cryptdlg.dll
regsvr32 /s initpki.dll


Open the Notepad program by navigating to:
Start > All Programs > Accessories > Notepad
In Notepad, choose Paste from the Edit menu. Note: make sure that the text that appears in Notepad is the same as what is shown above.
From the File menu, choose Save As.
In the File name: field type appleipod.bat and save the file to the Desktop.
Close Notepad and locate the appleipod.bat file. It should appear on the Desktop with the icon shown below:


Double-click the file and you will see a black window appear on the screen for about a minute. Wait until the window automatically disappears and proceed to the next step.
The appleipod.bat file can be deleted at this time.
Open iTunes and connect the iPod.
When the iPod appears in iTunes, restore the iPod and resync your content.