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Update from itunes to 7.4.3 ISScript Error

I am trying to update from itunes to 7.4.3 and get the following error:

The InstallScript engine is missing from this machine.  If available, please run ISScript.msi, or contact your support personnel for further assistance.

Microsoft Windows XP
Home Edition
Version 2002
Service Pack 2
HP Pavilion
1.18 GB of RAM
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1 Solution
You need the appropriate isscript support:
Follow instructions here: http://consumer.installshield.com/kb.asp?id=Q108158
jimw7Author Commented:
I have done the following as suggested by the link above and still get the same error:

If the file version number starts with 7, download the following ISScript.msi file and install it on your computer.
Delete the folder C:\Program Files\Common Files\InstallShield\Driver\7 from the machine.
Download IsScript7x.zip
Unzip the above file using the WinZip utility.
Double-click the IsScript.msi file. This installs the IsScript engine, which should fix the issue.
Okay - try installing ISScript11 - then try the update again.

Otherwise - you can remove old installer entries with the windows installer cleanup utility: http://support.microsoft.com/kb/290301

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jimw7Author Commented:
Where is the link for ISScript11?  I deleted it from my computer and Recycle Bin and now I cannot reinstall it.  There is not download link at http://consumer.installshield.com/kb.asp?id=Q108158
Hopefully that helped.
Thank you.

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