I am having errors upgrading from 2009 V4.1 to any higher versions (5.0, 2010 and even 2011).

I receive "code 1601" error.  Did not find anything on Solidworks.com.  But I did find on the web that is related to the Windows Installer.  I downloaded the latest version of Windows Installer and yet I still receive the same error.

The error reads as follows:

"The MSI file C:\documetns and settings\(my name)\My Documents\Solidworks Downloads\Solidworks 2009 SP05.1\swwi\data\English_i386_Solidworks.Msi did not install succesfully.  Code=1601"

Another thing I noticed is that under "Add or Remove Programs,"  SolidWorks does not appear at all.

I run a Windows XP SP3

Please help!!!!!!!!