i downloaded mysql-installer-5.5.17.0 for installing MySQL in my system,but when i run this i got the following message

> 
> "this application requires .NET Framework 4.0,please install the .NET Framework then run this installer again"
> 
> 
> 

i want to install MySQL for my java application and i don't need to do any .NET application
how i do that?what does the message means?