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Jun 17, 2009 at 08:10 AM

CR 2008 SP1 Error 1500 'Another installation is in progress'



I'm attempting to install the SP1 for Crystal Reports 2008. When I get to the actual installation phase after extracting all the files and agreeing to the T&C's i get the following message:

"Error 1500. Another installation is in progress. You must complete that installation before continuing with this one."

I've found a couple of references to this on the web and they all suggest deleting the InProgress Installer registry key. But, having done this and rebooted I still get the same message. Any one else seen this and know how to resolve it?

I'm using Windows XP SP3, I have CR9 and CR2008 already installed if that makes any difference.