改.dpr文件：
program Project1;
uses
Forms,
Unit1 in 'Unit1.pas' {Form1};
{$R *.RES}
begin
Application.Initialize;
Application.CreateForm(TForm1, Form1);
//Hide it ----------------------
Application.Title := ''; //从应用程序列表中隐藏
Application.ShowMainForm := false;
//------------------------------
Application.Run;
end.
如果要从进程列表中隐藏，
win9x:
------------------
Var
temp:integer;
begin
SystemParametersInfo(Spi_screensaverrunning,1,@temp,0);
end;
win2k
----------------------------
http://www.playicq.com/dispdoc.php?t=&id=2037
