Problem: I need to block the installation of Sharepoint 2010 in my organization.
Additonal Information: Because deployments of Microsoft SharePoint 2010 Products are managed at the farm level, a single SharePoint deployment has no information about other SharePoint deployments that might exist in the same enterprise. Administrators need this information to manage and control all deployments in the enterprise. For example, administrators need to know whether a deployment was configured according to organizational requirements, or how many unauthorized deployments exist in the enterprise. SharePoint 2010 Products provides the ability to lock down, track, and even block random installations of Microsoft SharePoint Server 2010.
If you want to block users from installing SharePoint Server 2010 and related products, set the following registry key by using Group Policy in Active Directory directory services:
HKLM\Software\Policies\Microsoft\Shared Tools\Web Server Extensions\14.0\ SharePoint\DWORD DisableInstall
To block installations, set DWORD DisableInstall=00000001.
When this registry key is set, users who try to install SharePoint Server 2010 receive the following error message:
SharePoint installation is blocked in your organization. Please contact your network administrator for more details.