I am copying a link below that might be of help for you:
msdn.microsoft.com/.../microsoft.xrm.sdk.messages.updaterequest.aspx
http://technet.microsoft.com/en-us/subscriptions/ms941082.aspx
I am copying a link below that might be of help for you:
msdn.microsoft.com/.../microsoft.xrm.sdk.messages.updaterequest.aspx
http://technet.microsoft.com/en-us/subscriptions/ms941082.aspx