A term for various techniques commonly used by Proprietary software vendors to make it harder for their customers to switch to the competition. These techniques include:
It’s worth pointing out that the key to running a successful business is not just to get your customers to pay you money, but to make them feel good about doing so. If they start to feel that your charges are becoming burdensome, then they will actively look for ways to avoid paying those charges, perhaps by moving to competing products. Making your customers feel good about sticking with you is the best competitive weapon you can have.