I remember in previous threads where if your DPX16 update service expired, an annoying popup appears every time you stated DPX16 that you cannot disable.

There is a way to prevent this from appearing using the Windows firewall.

Create an outgoing rule that blocks C:\Program Files\Xara\Xara Designer Pro X\16\DesignerPro.exe from accessing IP address 163.172.175.38.

I have created outgoing rule called "Designer Pro (Block update service)"

I have also created two scripts - one that enables the rule and the other that disables the rule (allowing DPX to access Magix servers)

My command that enables the rule is:
netsh advfirewall firewall set rule name="Designer Pro (Block update service)" new enable=yes

My command that disables the rule is:
netsh advfirewall firewall set rule name="Designer Pro (Block update service)" new enable=no

I hope this helps to get rid of the pesky DPX16 update popup.