Dear Juillet,

Frankly speaking, I never try for it. But, do you remember when you install your visual studio ??? And, at the end of instalation, you were asked about some installation needed ? And one of them is uninstallation ???

If you install the uninstallation item at that time, maybe you can include the item into your package.

I hope it will help. But, I don't know whether it could help or not...

Good Luck.

Regards,
Wen Lie