Adobe released Adobe Reader 9.1 . The Adobe® Reader® 9.1 update addresses a number of customer workflow issues and a critical security vulnerability while providing more stability. The update is available as a full Adobe Reader installer.

Check out "Deploy Adobe Acrobat and Reader" and the new 'Adobe Customization Wizard 9' which makes it very easy to customize the Adobe Reader for deployment:

If you opt to download and use 'AdbeRdr910_en_US_Std.exe' instead of 'AdbeRdr910_en_US.exe' you might want to consider using the 'DISABLE_AIR_SHARE' property in order to prevent shortcuts to 'Adobe Air' and 'Acrobat.com' being installed also.