{
I you want to hide your program from Windows NT compatibile systems (2000/XP)
you'll need to mess with the registry...
The Enable CTRLALTDEL procedure acceptsa boolean value for the YesNo parameter.
If you send False, after the code has executed,if the user presses ctrl-alt-del,
on the Windows Security dialog box,buttons [Task Manager], [Shut Down] and
[Log off] will be disabled.
}
procedure EnableCTRLALTDEL(YesNo : boolean);
const
sRegPolicies = '\Software\Microsoft\Windows\CurrentVersion\Policies';
begin
with TRegistry.Create do
try
RootKey:=HKEY_CURRENT_USER;
if OpenKey(sRegPolicies+'\System\',True) then
begin
case YesNo of
False:
begin
WriteInteger('DisableTaskMgr',1);
end;
True:
begin
WriteInteger('DisableTaskMgr',0);
end;
end;
end;
CloseKey;
if OpenKey(sRegPolicies+\Explorer\',True) then
begin
case YesNo of
False:
begin
WriteInteger('NoChangeStartMenu',1);
WriteInteger('NoClose',1);
WriteInteger('NoLogOff',1);
end;
True:
begin
WriteInteger('NoChangeStartMenu',0);
WriteInteger('NoClose',0);
WriteInteger('NoLogOff',0);
end;
end;
end;
CloseKey;
finally
Free;
end;
end;