Hi,
Sorry for my mistake.
We could disabling commands by using control IDs.
Check this link:
http://technet.microsoft.com/en-us/library/cc179143(v=office.14).aspx
Look at the section on Disabling commands by using control IDs.
Based on my research, the control ID of EditMessage is
5604.
If you want to confirm the control IDs, see:
Office 2010 Help Files: Office Fluent User Interface Control Identifiers
Thanks.
Steve Fan
TechNet Community Support

HI Steve,
That was great! It was a breeze, please help me with another problem which i facing.
my office enviroment have a mixture of office 2007, 2010 and 2013, mainly they are 2010 users.
I have imported the template and enforce the policy and it works with 2010.
I tried to do the same for 2013 but I realize that I have to import the 2013 ADMX files into the central policy store.
I did and and did see the policy inside, but when i enforce the policy, it doesnt work on 2013. Will you happen to guide me on this?