AccessViolationException

發生錯誤原因:在可驗證 Managed 程式碼組成的程式中，所有參考不是有效就是 null，所以不可能發生存取違規。
只有當可驗證 Managed 程式碼與 Unmanaged 程式碼或 Unsafe Managed 程式碼互動時，才會發生 AccessViolationException。

發生 AccessViolationException原因如下:
(1) 可能是DLL或EXE檔之間, DLL相依的版本不一致
(2) 電腦中毒或遭受木馬病毒或其他惡意程式干擾
(3) 作業系統非正版，使用破解版
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System.AccessViolationException: Attempted to read or write protected memory.

This is often an indication that other memory is corrupt..

If you have VS2005 C++ Unit Tests, written in managed C++ as they should be,

and you are calling native code from them,

and you see that error when running your unit tests –

I have found it to mean that you are using insecure versions of methods (strcpy, etc).

If you change the method calls to the secure versions, you should see your tests pass!