diff --git a/doc/overview.qbk b/doc/overview.qbk
index eeb77e4..8e8dcbe 100644
--- a/doc/overview.qbk
+++ b/doc/overview.qbk
@@ -33,4 +33,8 @@ All functions and classes are contained in the namespace __coro_ns__.
 
 [note This library requires C++11!]
 
+[important Windows: turn off global program optimization (/GL) and change /EHsc (compiler
+assumes that functions declared as extern "C" never throw a C++ exception) to /EHs (tells
+compiler assumes that functions declared as extern "C" may throw an exception).]
+
 [endsect]