I wanna deploy a Word addin to the computer of customer, however, how can I prevent user uninstall my addin? or make Word invalid if my addin is absent ?
You can't, for reasons that should be obvious. If they're not obvious, you're in the wrong business: apologize to your client and slink away.
> I wanna deploy a Word addin to the computer of customer, > however, how can I prevent user uninstall my addin? > or make Word invalid if my addin is absent ?