Defeating the Adobe CS4 ‘License Expired’ dialog in OS X.

“License Expired. Licensing for this product has expired.” - Adobe CS4, 2009

CS4 License Expired Dialog

When Adobe CS4 issues this message on your Mac alarm bells might start going off in your head. Not to worry though, simply quit all CS4 apps and delete the following file:

/Library/Application Support/Adobe/Adobe PCD/cache/cache.db

The above path refers to the top level Library immediately inside your Macintosh HD. Now when you restart your CS4 apps you’ll be prompted to license your product with a new serial number.

If you have lost your serial number / product key, or otherwise feel justified in so doing, you may download a CS4 keygen (key generator) which will work on your Intel Mac here.

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