keycodev2.dll

Hi,
I have created an application using VS.Net 2003 and crystal reports in my forms.
When i tried to run the application I got this error:
"An unhandled exception of type 'CrystalDecisions.CrystalReports.Engine.InternalEx ception' occurred in crystaldecisions.crystalreports.engine.dll
Additional information: Cannot find KeycodeV2.dll, or invalid keycode."

Please help, i really don't know how to solve this problem.

I have tried to :

- Register Crystal Report
- Register crqe.dll using the regsvr32 command
- Register keycodev2.dll using the regsvr32 command
- copying the keycodev2.dll to the application folder
- copying the keycodev2.dll to the commonfile/crystalreport/1.0 folder

But nothing helps ...

Thanks in advance