hello,

I have a problem to activate a License DrafSight Professional, been the key to enter the software and then I sent the attached file here asking the return message I get by email:

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

 Thank for help