Web user controls:-
Web User Control is Easier to create and another thing is that its support is limited
for users who use a visual design tool one good thing is that it
s contains static layout one more thing a
separate copy is required for each application.
Web custom controls:-
Web Custom Control is typical to create and good for dynamic layout and
another thing is that it has full tool support for user and a single co
py of control is required because it is
placed in Global Assembly cache.