We have Adobe LiveCycle Designer 8.0 installed (came with Adobe Acrobat 8.0 Professional) on our PC. We also have Adobe LiveCycle WorkBench installed on our PC. When we tried to create/open a pdf/xdp file from WorkBench, we got "Incompatible LiveCycle Designer Version" error message.
It looks like the workbench uses the Designer coming with Adobe Acrobat 8 Professional (the version is 8.0, doesn't matter whether it's running or not. So we tried to upgrade it. And the upgrade ran successfully, but only upgraded the acrobat to version 8.1 and left the designer still at version 8.0. Later, we tried to understall the Adobe Acrobat 8 Pro to try make the workbench to use the designer in itself...but got the error of "Unable to create this part due to an internal error. Reason for the failure: Class ID not found in registry result = -2147221005" (please see below). We're not sure if workbench has designer built in or it relies on the Designer that has to be installed seperately...because we made a fresh install of the workbench on a clean PC without installing Adobe Acrobat 8 Pro, and got the same error as below. So it comes with the question: is there a designer embeded in the workbench itself?
