diff --git a/base/basictypes.h b/base/basictypes.h
index 58a858625e..e54af02ad6 100644
--- a/base/basictypes.h
+++ b/base/basictypes.h
@@ -3,6 +3,18 @@
 #include <stdint.h>
 #include <stdlib.h>  // for byte swapping
 
+#ifdef _WIN32
+// We need this to compile without hundreds of std::bind errors in Visual Studio 2012
+// since by default VARIADIC_MAX is something low like 3, 4, or 5.
+// It's a good idea to include this file wherever std::bind is being used with more than 3, 4 or 5 args.
+// Visual Studio 2013 doesn't need this after all, so we can simply check for equality.
+#if _MSC_VER == 1700
+ #undef _VARIADIC_MAX
+ #define _VARIADIC_MAX 10
+ #endif
+
+#endif
+
 #ifdef _WIN32
 #pragma warning(disable:4244)
 #pragma warning(disable:4996)
diff --git a/thread/thread.h b/thread/thread.h
index 58d60b725f..1a1b37615d 100644
--- a/thread/thread.h
+++ b/thread/thread.h
@@ -245,7 +245,17 @@ private:
 		void Run() { func(); }
 
 	private:
-// Visual Studio 2012 needs this, or else it complains about losing const-volatile qualifiers.
+// Both Visual Studio 2012 & 2013 need the following ifdef, or else they complain about losing const-volatile qualifiers:
+// Error	23	error C3848: expression having type 'const std::_Bind<true,void,void 
+//(__cdecl *const )(PrioritizedWorkQueue *),PrioritizedWorkQueue *&>' would lose some const-volatile qualifiers in order to call 'void std::_Bind<true,void,void (__cdecl *const )(PrioritizedWorkQueue *),PrioritizedWorkQueue *&>::operator ()<>(void)' (thread\prioritizedworkqueue.cpp)
+
+// Error	24	error C3848: expression having type 'const std::_Bind<true,void,std::_Pmf_wrap<void (__cdecl WorkerThread::* )(void),void,WorkerThread,>,WorkerThread *const >'
+// would lose some const-volatile qualifiers in order to call 
+// 'void std::_Bind<true,void,std::_Pmf_wrap<void (__cdecl WorkerThread::* )(void),void,WorkerThread,>,WorkerThread *const >::operator ()<>(void)' (thread\threadpool.cpp)
+
+// Error	25	error C3848 : expression having type 'const std::_Bind<true,void,std::_Pmf_wrap<void (__cdecl http::Download::* )(std::shared_ptr<http::Download>),void,http::Download,std::shared_ptr<http::Download>>,http::Download *const ,std::shared_ptr<http::Download> &>' 
+// would lose some const - volatile qualifiers in order to call 
+// 'void std::_Bind<true,void,std::_Pmf_wrap<void (__cdecl http::Download::* )(std::shared_ptr<http::Download>),void,http::Download,std::shared_ptr<http::Download>>,http::Download *const ,std::shared_ptr<http::Download> &>::operator ()<>(void)' (net\http_client.cpp)
 #if _MSC_VER >= 1700
 		C func;
 #else