How to hide an application from taskbar in Windows 7?

Question

I would like to hide an application from the Windows 7 taskbar.

I want to make something like a toolbar on the edge of the screen which does certain things when the

Answer 1

your application main form is normally created in the dpr so open the dpr and look for the line that creates the main form.

// add this line first
// blank app title will prevent app from showing in the applications list in task manager
Application.Title := '';

// this line is already in the dpr and creates the main form, the class will differ
Application.CreateForm(TMainForm, Result);

// make the main form invisible to windows taskbar/task switcher
i := GetWindowLong(Application.Handle, GWL_EXSTYLE);
SetWindowLong(Application.Handle, GWL_EXSTYLE, i OR WS_EX_TOOLWINDOW AND NOT WS_EX_APPWINDOW);

i know this works on XP and 7. i'm guessing it's good for 8 as well. this adds the tool window flag and removes the appwindow flag so i guess if you're not interested in the toolwindow flag you can leave out the following part

i OR WS_EX_TOOLWINDOW