Windows and Web Application in one Solution (about chatting)

hello evryone. i have a project and need some ideas. the project is about chatting. there are two types of users. the one is admin and the other is just user. admins will send messge to  user with a windows application however users will chat admins from an ASP.Net web page. users will not chat each other. only admin to user, user to admin. there is an sql databaase on our server. lets imagine the project. when admin sends message, the message fisrtly goes to databse and at this point en event will be fired from windows application to catch the admin message from the asp side.  and  whn user cathes this event admin message wiill be added to a control on ASP.Net web page. then usser will send a messga to admin. user message goes firstly to database and event will fired from ASP.net page. from windows application that event will be cought and user message will be shown to admin.  

is there anything  wrong here?    can u share your better ideas please. and i am sorry for english. i hope i could give the what the aim is :(