If you search around, you will find pages like this How to Disable Right Click in Windows XP
Which is doing the following,,,
This is the corect way for this policy in Windows 7.
In the bottom box type "edit group policy" (wihtout quotes)
Click on the listing "Edit Group Policy" , do not hit enter
User Configuration / Administrative Templates / Windows Components / Windows Explorer
In the right pane find "Remove Windows Explorer's default context menu"
Double Click and check Enabled and hit OK
This will disable the context menu, stuff in Explorer, but probably won't fully disable the right click function all together. Both methods are refering to disabling the Right Click function on the Desktop and Windows Explorer, but not in individual applications.
I know this is not what you are looking for, but wanted to explain this.
The first link I posted is doing the same thing, only through the registry directly, which it should not be done that way for this particualr setting in Windows 7.
To fully disable the right click function...... would probably depend on the software for your Mouse. You would need to install that and check it's options to see if it is there.
I have searched around and can't find anything on stopping it completely for all applications.