asp.net调用C++的Dll，报这样的错“尝试读取或写入受保护的内存。这通常指示其他内存已损坏”

问题描述

publicclassmsdid{[DllImport(@"E:ddaSoftEncryptDllDebugSoftEncryptDll.dll",EntryPoint="GetHardDiskSN",CharSet=CharSet.Auto,CallingConvention=CallingConvention.StdCall)]publicstaticexternStringBuilderGetHardDiskSN();}//引用ＤＬＬprotectedvoidPage_Load(objectsender,EventArgse){StringBuilderb=msdid.GetHardDiskSN();//调用DLL}

解决方案

解决方案二：
在线等！！高手请进