Latest CRM 4.0 rollup 12 released on 30/July/2010.
Rollup 12 can be uninstall on server
Rollup 12 is cumulative.
Rollup 1,2,3,4,5,6,7,8,9,10,11 are not prerequisites for server portion.
Update Rollup 7 is a prerequisite for Microsoft Dynamics CRM for Microsoft Office Outlook and Microsoft Dynamics CRM Data Migration Manager.
Update Rollup 12 will install the Microsoft Report Viewer 2008 Redistributable Package.
Update Rollup 12 will install the Microsoft Visual C++ 2008 Redistributable Package
18 hours ago