Sandboxed solutions planning (SharePoint Foundation 2010)
Published: May 12, 2010
Sandboxed solutions restrict access to network and local resources to provide greater security and stability. You can use sandboxed solutions for load balancing solutions, for solutions that have not been fully tested, and for deploying user solutions in a hosted environment. Sandboxed solutions run in a separate worker thread so that they cannot access resources that belong to other solutions, and they have limited access to local and network resources.