Index: src/ch/UpdateChecker.cpp
===================================================================
diff -u -r2457755b4084e3d1c80a8e7c77c9f0996312941b -r9f104b1c0d552cbe2d1c6b799388af53acce8228
--- src/ch/UpdateChecker.cpp	(.../UpdateChecker.cpp)	(revision 2457755b4084e3d1c80a8e7c77c9f0996312941b)
+++ src/ch/UpdateChecker.cpp	(.../UpdateChecker.cpp)	(revision 9f104b1c0d552cbe2d1c6b799388af53acce8228)
@@ -299,7 +299,7 @@
 /// @param[in] lpvStatusInformation		Additional status information.
 /// @param[in] dwStatusInformationLength Length of lpvStatusInformation.
 // ============================================================================
-void CAsyncHttpFile::InternetStatusCallback(HINTERNET hInternet, DWORD_PTR dwContext, DWORD dwInternetStatus, LPVOID lpvStatusInformation, DWORD dwStatusInformationLength)
+void CALLBACK CAsyncHttpFile::InternetStatusCallback(HINTERNET hInternet, DWORD_PTR dwContext, DWORD dwInternetStatus, LPVOID lpvStatusInformation, DWORD dwStatusInformationLength)
 {
 	CString strMsg;
 	strMsg.Format(_T("[CAsyncHttpFile::InternetStatusCallback] hInternet: %p, dwContext: %lu, dwInternetStatus: %lu, lpvStatusInformation: %p, dwStatusInformationLength: %lu\n"),
Index: src/ch/UpdateChecker.h
===================================================================
diff -u -rf34d204b8eecd6817dbe4a1c3b3541cf9a8794b0 -r9f104b1c0d552cbe2d1c6b799388af53acce8228
--- src/ch/UpdateChecker.h	(.../UpdateChecker.h)	(revision f34d204b8eecd6817dbe4a1c3b3541cf9a8794b0)
+++ src/ch/UpdateChecker.h	(.../UpdateChecker.h)	(revision 9f104b1c0d552cbe2d1c6b799388af53acce8228)
@@ -55,7 +55,7 @@
 	bool IsClosed() const { return m_hOpenUrl == NULL; }
 
 protected:
-	static void InternetStatusCallback(HINTERNET hInternet, DWORD_PTR dwContext, DWORD dwInternetStatus, LPVOID lpvStatusInformation, DWORD dwStatusInformationLength);
+	static void CALLBACK InternetStatusCallback(HINTERNET hInternet, DWORD_PTR dwContext, DWORD dwInternetStatus, LPVOID lpvStatusInformation, DWORD dwStatusInformationLength);
 
 	void SetUrlHandle(HANDLE hOpenUrl);
 	void SetErrorCode(DWORD dwError);