Hi Vipul,

Here is a link to Crystal Decisions which has a KB article that addresses your error:

http://support.crystaldecisions.com/library/kbase/articles/c2011205.asp


>I get the following error when using Crystal report & Dot net.
>
>I have tried installing Dot-Net 3 times but continue to get these errors
>
>Do I need to install / uninstall anything. Am I missing anything?
>
>Can anybody please help.
>
>TIA
>
>Vipul
>*----------------------------------------------------------------
>
>
>CrystalDecisions.CrystalReports.Engine.
>[InternalException: Cannot find KeycodeV2.dll, or invalid keycode.]
>
>
>
>
>
>An unhandled exception of type 'System.NullReferenceException' occurred in mscorlib.dll
>Additional information: Object reference not set to an instance of an object