如何要求用户激活我的程序

Question

我在想…

我有一个程序，我想收费。

它运行在Windows上，主要是用VB和批处理文件编写的…

我如何强制用户购买产品密钥，并激活它来使用付费版本?

提前感谢!

~ @Cascading-style

Answer 1

这只是一个小例子，告诉你可以限制程序的执行次数，所以如果达到了最大执行次数，程序将自动删除self

@echo off
Setlocal enabledelayedexpansion
Title Count the number of times my BATCH file is run
Mode Con Cols=70 lines=7 & color 0E
Set /a MaxExecution=3
set /a count=1
set "FileCount=%tmp%%~n0.dll"
If Not exist "%FileCount%" (
    echo !count! > "%FileCount%"
) else (
    For /F "delims= " %%a in ('Type "%FileCount%"') Do (
        set /a count=!count! + %%a
        echo !count! > "%FileCount%"
    )
)
echo.
echo             This Program is running for "!count!" time(s)
Call :SelfDelete
pause>nul & Exit /b
::**************************************************************
:SelfDelete
echo.
If !count! GTR !MaxExecution! (
    Color 0C
    echo The maximum execution of this "%~nx0" is set to "!MaxExecution!"
    echo and it is reached & Timeout /T 5 /Nobreak>nul & Del %~f0
    ) else (
    echo         The counting is "!count!" and the max is set to "!MaxExecution!"
)
Goto :EOF
::**************************************************************