
The 
ASP.NET development team is ready to introduce a new set of open source tools called 
Sprite and Image Optimization Framework .
Sprite and Image Optimization Framework is a framework that contains a set of client optimization tools for websites that can reduce the time to access pages for users. For this, the framework proposes to use mechanisms for optimizing the loading of images: through sprites and coding based on 
data: uri .
')
ASP.NET developers are encouraged to use the control for 
WebForms projects and a special auxiliary class for 
ASP.NET MVC projects. An 
HTTP Module is supplied with them, which does all the work of optimizing images and transferring them to the client.
Download Sprite and Image Optimization Framework at 
this link from 
codeplex.com . There you can find the source code framework, demonstration projects, documentation.