Author: Jonas Bilinkevicius
How to hide a program from Windows
Answer:
Look at this modified project source and apply the changes to your own project:
1 program Project1;
2 3 uses4 Forms,
5 Unit1 in 'Unit1.pas' {Form1},
6 Windows;
7 8 {$R *.RES}9 10 var11 ExtendedStyle: Integer;
12 13 begin14 Application.Initialize;
15 ExtendedStyle := GetWindowLong(Application.Handle, GWL_EXSTYLE);
16 SetWindowLong(Application.Handle, GWL_EXSTYLE, ExtendedStyle or WS_EX_TOOLWINDOW
17 andnot WS_EX_APPWINDOW);
18 Application.CreateForm(TForm1, Form1);
19 Application.Run;
20 end.