Windows Sidebar and DEP

My windows sidebar is supposed to start up when I turn my computer on. However, everyday this week, I get a notice that it is being shut down because of DEP. When I go to find out more information, it tells me that I can shut down DEP for individual programs, however, I do not know the code for Windows Sidebar. Has anyone else had this problem and if so, how do I fix it?

[381 byte] By [NewtoVista] at [2008-1-1]