diff --git a/lib/public/mathlib.lib b/lib/public/mathlib.lib
index 0d87631b..5ecf7f0e 100644
Binary files a/lib/public/mathlib.lib and b/lib/public/mathlib.lib differ
diff --git a/lib/public/tier1.lib b/lib/public/tier1.lib
index 9affeb4d..c21e0990 100644
Binary files a/lib/public/tier1.lib and b/lib/public/tier1.lib differ
diff --git a/lib/public/win64/mathlib.lib b/lib/public/win64/mathlib.lib
index 36031a28..aa2c2571 100644
Binary files a/lib/public/win64/mathlib.lib and b/lib/public/win64/mathlib.lib differ
diff --git a/lib/public/win64/tier1.lib b/lib/public/win64/tier1.lib
index 0bf96fad..7274777f 100644
Binary files a/lib/public/win64/tier1.lib and b/lib/public/win64/tier1.lib differ
diff --git a/public/tier0/threadtools.h b/public/tier0/threadtools.h
index 275fec2f..39205ebc 100644
--- a/public/tier0/threadtools.h
+++ b/public/tier0/threadtools.h
@@ -92,8 +92,14 @@ TT_INTERFACE bool ReleaseThreadHandle( ThreadHandle_t );
 
 //-----------------------------------------------------------------------------
 
-TT_INTERFACE void ThreadSleep(unsigned duration = 0);
+#if defined( PLATFORM_WINDOWS ) && !defined( PLATFORM_64BITS )
+extern "C" unsigned long __declspec(dllimport) __stdcall GetCurrentThreadId();
+inline ThreadId_t ThreadGetCurrentId() { return GetCurrentThreadId(); };
+#else
 TT_INTERFACE ThreadId_t ThreadGetCurrentId();
+#endif
+
+TT_INTERFACE void ThreadSleep(unsigned duration = 0);
 TT_INTERFACE ThreadHandle_t ThreadGetCurrentHandle();
 TT_INTERFACE int ThreadGetPriority( ThreadHandle_t hThread = NULL );
 TT_INTERFACE bool ThreadSetPriority( ThreadHandle_t hThread, int priority );