How to upload file with windows API on the windows mobile platform?

See more:

C++

Windows

Mobile

HTTP

Now,I want to post a zip file to the web,the key code on the below:

CHttpConnection * pHC = NULL;
	       CHttpFile * pHF = NULL;
	       CInternetSession cis;
               CString strBoundry = _T("-----------------------------7d86d16250370");
		pHF = pHC->OpenRequest(CHttpConnection::HTTP_VERB_POST, strObject);
		CString strHeader = MakeRequestHeaders(strBoundry,strFileName,strServer,wPort);
		CString strHeader1 = MakePreFileData(strBoundry,strFileName);
		pHF->AddRequestHeaders(strHeader);
		
			if(!pHF->SendRequest(strHeader,0, pFileBuff, dwFileLength))   {
				delete[]pFileBuff;

				pFileBuff = NULL;
				pHF->Close();
				pHC->Close();
				cis.Close();
				MessageBox(NULL,_T("upload failed!"),_T("Title"),MB_ICONEXCLAMATION|MB_OK);
				return FALSE;
			DWORD dwStateCode = 0;
		pHF->QueryInfoStatusCode(dwStateCode);
 
		if(dwStateCode == HTTP_STATUS_OK)
		{
			bResult = TRUE;
			MessageBox(NULL,_T("upload successed!"),_T ("Title"),MB_ICONEXCLAMATION|MB_OK);
			}
		}

Content-Type: multipart/form-data;
after excuted my code,the tomact notice me the asking rest service successful,but have no data.How can I upload a zip file to web?thanks