Microsoft Dynamics CRM 2015 License key Reg

Hi All,

My client using Microsoft Dynamics CRM 2009. Now they needs to migrate from CRM 2009 to CRM 2015.

Presently we need to download the CRM 2015 license key for development purpose. Please help how to download the Microsoft Dynamics CRM 2015 license key from partner source. Also suggest me how to download the CRM 2015 license key for my client.

Thanks

Kasthurirangan.V