An ordinary punter buys a D-Link camera "off-the-shelf" from a retail store. All he's interested in is a security camera for his home.
What does he get with it for viewing & recording it from the Internet but a CD holding an out-of-date version of DVC, 3.6.4 in my case, that is unsuitable for Win 10, & earlier, by switching UAC OFF & so preventing Win Apps from running.
If he is slightly tech-savvy he might stumble across the main D-Link Support Download site. What does he find there but an even older version of DVC 3.6.0.
How does he know that a version 4 DVC will avoid these problems and allow him to run his Win Apps? How does he know that such a version is available here for download? Does he even know that these forums exist?
No, the ordinary user will not find this site and is therefore deprived of an update that will make DVC hygienic again.
D-Link should engineer DVC to auto update itself over the Net as other software does so that the ordinary user doesn't have to worry about such things.