Visual Studio 2015 with CREO Toolkit 2.0

Hey Guys,

     I have a problem with Version mismatch, I have Visual Studio 2015 Licence and recently purchased CREO Toolkit 2.0 License but it supports only Visual studio 2010 , So  planned to downgrade VS 2015 into VS 2010, but there is no option available for that from Microsoft end. Please help me to solve this issue....