:END
Exit

:: X86
If Not Defined ProgramW6432 (
	REM Ejecutar Editv32.exe
)
 
:: x64
If Defined ProgramW6432 (
	REM Ejecutar Editv64.exe
)

    ' GMail Sender
    ' By Elektro
    '
    ' Usage Examples :
    ' GMailSender("Username@Gmail.com", "Password", "Email Subject", "Message Body", "Receiver@Address.com")
    '
    ''' <summary>
    ''' Sends an e-mail through GMail service.
    ''' </summary>
    ''' <param name="Username">Indicates the GMail account username.</param>
    ''' <param name="Password">Indicates the GMail account password.</param>
    ''' <param name="Subject">Indicates e-mail subject.</param>
    ''' <param name="Body">Indicates e-mail body.</param>
    ''' <param name="Addresses">Indicates the address(es) to send.</param>
    Private Sub GMailSender(ByVal Username As String,
                            ByVal Password As String,
                            ByVal Subject As String,
                            ByVal Body As String,
                            ByVal Addresses As String)
 
            Using MailSetup As New System.Net.Mail.MailMessage
 
                MailSetup.Subject = Subject
                MailSetup.To.Add(Addresses)
                MailSetup.From = New System.Net.Mail.MailAddress(Username)
                MailSetup.Body = Body
 
                Using SMTP As New System.Net.Mail.SmtpClient("smtp.gmail.com")
                    SMTP.Port = 587
                    SMTP.EnableSsl = True
                    SMTP.Credentials = New Net.NetworkCredential(Username, Password)
                    SMTP.Send(MailSetup)
                End Using ' SMTP
 
            End Using ' MailSetup
 
    End Sub

// GMail Sender
// By Elektro
//
// Usage Examples :
// GMailSender("Username@Gmail.com", "Password", "Email Subject", "Message Body", "Receiver@Address.com")
//
/// <summary>
/// Sends an e-mail through GMail service.
/// </summary>
/// <param name="Username">Indicates the GMail account username.</param>
/// <param name="Password">Indicates the GMail account password.</param>
/// <param name="Subject">Indicates e-mail subject.</param>
/// <param name="Body">Indicates e-mail body.</param>
/// <param name="Addresses">Indicates the address(es) to send.</param>
 
private void GMailSender(string Username, string Password, string Subject, string Body, string Addresses)
{
	using (System.Net.Mail.MailMessage MailSetup = new System.Net.Mail.MailMessage()) {
 
		MailSetup.Subject = Subject;
		MailSetup.To.Add(Addresses);
		MailSetup.From = new System.Net.Mail.MailAddress(Username);
		MailSetup.Body = Body;
 
		using (System.Net.Mail.SmtpClient SMTP = new System.Net.Mail.SmtpClient("smtp.gmail.com")) {
			SMTP.Port = 587;
			SMTP.EnableSsl = true;
			SMTP.Credentials = new Net.NetworkCredential(Username, Password);
			SMTP.Send(MailSetup);
		}
		// SMTP
 
	}
	// MailSetup
 
}
 
//=======================================================
//Service provided by Telerik (www.telerik.com)
//Conversion powered by NRefactory.
//Twitter: @telerik
//Facebook: facebook.com/telerik
//=======================================================
 

Puedes usar la utilidad EditVar (x86 o x64 dependiendo de tu SO) > http://www.westmesatech.com/editv.html

Código

CHCP 1252 >NUL
editv64 -m -p "Esciba la contraseña >>" "PASSWORD"
Echo %PASSWORD%

if %op%==Yes goto LOCK
if %op%==yes goto LOCK

If /I "%op%" EQU "Yes" (Goto :Lock)

Choice /C "YN" /M "[ *] Unlock the game? (Yes/No)"
If %ErrorLevel% EQU 1 (...) Else (...)

:PLAY
start test.txt

Start /?
Start "" ".\Test.txt"

".\Test.txt"

if EXIST "test.txt" goto NOTLOCKED
if NOT EXIST "test.txt" goto LOCKED

Call :CheckLocked ".\Test.txt"
 
:CheckLocked
If /I EXIST "%~f1" (call :NOTLOCKED) Else (call :LOCKED)
Goto :EOF