急求教一个编码有关问题

急求教一个编码问题。

void CWLYView::GetLoginCookies()

{

	try

	{

		CInternetSession mSession(_T(""));

		CHttpConnection* pHttpConnect = mSession.GetHttpConnection(_T("www.wolongyin.com"));

		if (pHttpConnect)

		{

			CHttpFile* pFile = pHttpConnect->OpenRequest(CHttpConnection::HTTP_VERB_GET,TEXT("/loginGame.jsp?sid=1002"),NULL,1,NULL,NULL,INTERNET_FLAG_EXISTING_CONNECT|INTERNET_FLAG_NO_COOKIES);

			if(pFile)

			{

				pFile->AddRequestHeaders(_T("Accept: */*"));

				pFile->AddRequestHeaders(_T("Accept-Language:zh-CN"));

				pFile->AddRequestHeaders(_T("User-Agent:Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)"));

				pFile->AddRequestHeaders(_T("Accept-Encoding:gzip, deflate"));

				pFile->AddRequestHeaders(_T("TGClient:yes"));

				pFile->AddRequestHeaders(_T("Host:www.wolongyin.com"));

				pFile->AddRequestHeaders(_T("Connection:Keep-Alive"));

				pFile->SendRequest();

				DWORD dwStatusCode;

				pFile-> QueryInfoStatusCode(dwStatusCode);

				if (dwStatusCode == HTTP_STATUS_OK)

				{

					CString strStatus(_T("")); 

					if(pFile->QueryInfo(HTTP_QUERY_RAW_HEADERS_CRLF, strStatus))

					{

					int begin = strStatus.Find(_T("Set-Cookie:"),0) + CString("Set-Cookie:").GetLength() + 1;

					int end = strStatus.Find(_T(";"),begin+1);

					m_LoginCookie = strStatus.Mid(begin,end-begin);

					}

					TCHAR* sz =  new TCHAR[BUFSIZ+1];

					sz[0] = '\0';

					pFile->SetReadBufferSize(BUFSIZ*2);

					CString strHtml(_T(""));

					while (pFile->ReadString(sz,BUFSIZ))

					{						

						//CString strTemp = _T("");

						//strHtml += sz;

						int wcsLen = ::MultiByteToWideChar(CP_ACP,NULL,(LPCSTR)sz,strlen((LPCSTR)sz),NULL,0);

						TCHAR* wcsString = new TCHAR[wcsLen+1];

						::MultiByteToWideChar(CP_ACP,NULL,(LPCSTR)sz,strlen((LPCSTR)sz),wcsString,wcsLen);

						wcsString[wcsLen] = '\0';

						strHtml += wcsString;

						delete [] wcsString;

					}

					delete [] sz;

					AfxMessageBox(strHtml); 

				}

				pFile->Close();  

				delete pFile;

				pFile = NULL;

			}

		}

		pHttpConnect->Close();  

		delete pHttpConnect;

		pHttpConnect =NULL;

		mSession.Close();

	}

	catch (CInternetException* e)