Upgrade Questions

 

How do I upgrade to LISREL for Windows?

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The upgrade from LISREL 8.5 or an earlier version of LISREL is a paid upgrade. Contact our Sales Representative, Bola King [sales@ssicentral.com] to initiate the upgrade process.

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Why do I receive the "Old file does not exist" error message?

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This usually occurs if you are not running the patch file FROM the folder in which your previous version of LISREL is installed.

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Why do I receive the "Invalid Windows application" error message?

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This usually happens if you did not download the complete patch file. Check the size of your file to the size listed on the download page.

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