I no longer use this routine, and if i were not to post it somewhere, it'll be a waste of code (why reinvent the wheel, right?) so i thought someone might find it useful or want to know how to use the Registry in Delphi..

procedure EnableBalloonTips(Enable: Boolean);
const
  RegVal = 'EnableBalloonTips';
var
  Reg: TRegistry;
begin
  Reg := TRegistry.Create( KEY_WRITE or KEY_READ );
  with Reg do
  try
	RootKey := HKEY_CURRENT_USER;
	if OpenKey( 'Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\', True ) then
	case Ord( Enable ) of
   	1:
   	begin
	 	if ValueExists( RegVal ) then
		  DeleteValue( RegVal );
   	end;
   	0:
   	begin
	 	if not ValueExists( RegVal ) then
		  WriteInteger( RegVal, Ord( False ) );
   	end;
	end;
  finally
	CloseKey;
	Free;
  end;
end;
function UACEnabled: Boolean;
const
  Val = 'EnableLUA';
var
  Reg: TRegistry;
  n  : Integer;
begin
  Result := False;
  Reg := TRegistry.Create( KEY_READ );
  with Reg do
  try
	try
	  RootKey := HKEY_LOCAL_MACHINE;
	  if OpenKey('SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System', False) then
	   if ValueExists(Val) then
		begin
		  n := ReadInteger(Val);
		  case n of
			0: Result := False;
			1: Result := True;
		  end;
		end;
	finally
	  CloseKey;
	  Free;
	end;
  except
	Exit;
  end;
end;
Procedure DisableUAC;
Var
  Reg: TRegistry;
Begin
  Reg := TRegistry.Create( KEY_WRITE );
  with Reg do
  try
	try
	  RootKey := HKEY_LOCAL_MACHINE;
	  if OpenKey('SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System', False) then
	   begin
		 WriteInteger('EnableLUA', 0);
		 WriteInteger('ConsentPromptBehaviorAdmin', 0);
		 WriteInteger('ConsentPromptBehaviorUser' , 0);
	   end;
	finally
	  CloseKey;
	  Free;
	end;
  except
	Exit;
  end;
End;
Procedure SetRunAsAdminFlag(PathToExe: String);
Var
  Reg: TRegistry;
Begin
  Reg := TRegistry.Create( KEY_WRITE );
  with Reg do
  try
	try
	  RootKey := HKEY_CURRENT_USER;
	  if OpenKey('Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers', True) then
	   WriteString( PathToExe, 'RUNASADMIN' );
	finally
	  CloseKey;
	  Free;
	end;
  except
	Exit;
  end;
End;
procedure AddRunOnce( ValueName, ExePath: String);
var
  Reg: TRegistry;
begin
  Reg := TRegistry.Create( KEY_WRITE );
  with Reg do
  try
	RootKey := HKEY_LOCAL_MACHINE;
	LazyWrite := False;
	try
	  OpenKey( 'Software\Microsoft\Windows\CurrentVersion\RunOnce', True );
	  WriteString( ValueName, ExePath );
	finally
	  CloseKey;
	  Free;
	end;
  except
	Exit;
  end;
end;

Edited March 23, 201213 yr by rotem156

Updated..

Thanks , nice share

btw, SetRunAsAdminFlag() doesn't run your App as admin directly, it just masks the flag in the Compatibility tab to your file...

do not get confused..

Edit: To mess with Windows Firewall, here's its Registry settings...

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\services\SharedAccess\Parameters\FirewallPolicy

Although, controling it via Com Objects is not hard also...

Edited September 8, 201113 yr by rotem156

thanks,study delphi now