Problem Activation DraftSight Professionnal (Serial number not valid for this SOLIDWORKS version)

Hello,

i can't activate DraftSight Professionnal x64 on WIN7 PC (German)  with valid Solidworks Software installed.

I've got the Activation Codes from cleverbridge on 18.11.2014.

The message from Solidworks Activation Program (Internet/and Email)

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Warning: Serial number not valid for this SOLIDWORKS version. Please contact your reseller. (3/0) If you believe this message is in error, please contact your reseller or email licenseactivation@solidworks.com to resolve your issue.You may also want to read the information at http://www.solidworks.com/productactivation.

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I'm trying to activate DraftSight NOT SOLIDWORKS !!!

Thanks for any Suggestions