Hello all,

My client wants me to create a Web app version of a Windows Forms
application that I've written for them some time ago.
The original app registers itself to a specialized server (implemented as a
windows service) and then waits for PUSHed messages from the server and acts
accordingly.

Now -surprise- they want me to achieve the same or similar responsiveness
(which for the windows app is in the millisecond range, but I expect that a
second will still be acceptable for a web app) for a web app version client,
which IMHO is near impossible because of the pull-nature of web apps (I'd
rather not flood the server with continuous GET requests).

Am I right, or is there some clever way to perform (or simulate) push
behaviour for web apps? Should I consider building a web app at all? Or
should I just stay with my forms app and just use the web as its deployment
vehicle?

TIA