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.