Sharepoint Search working only for Sharepoint Admin

Sharepoint Search is not working anyone Except Sharepoint Admin

I configured Sharepoint Search and Crawled the Sharepoint Websites in the Sharepoint 2010 Server and verified Search is working using Sharepoint Admin Account but the search was not working for all sharepoint Users.

Found the Solution:
                             Finally found cause for the Issue that needs to Sharepoint Search Service Account in windows server 2003 Active Directory "Add Users to the Pre-Windows 2000 Compatible Access Group" .

Once we added the Service Account on that group then Search was working for Everyone.

We refer below links
http://tristanwatkins.com/index.php/sharepoint-server-2010-search-scopes-and-pre-windows-2000-compatibility-access/

http://support.microsoft.com/kb/303973