diff -wruN portaudio/src/hostapi/wasapi/pa_win_wasapi.c portaudio-v19/src/hostapi/wasapi/pa_win_wasapi.c
--- portaudio/src/hostapi/wasapi/pa_win_wasapi.c	2012-06-29 06:44:12.000000000 -0500
+++ portaudio-v19/src/hostapi/wasapi/pa_win_wasapi.c	2012-12-31 14:46:16.533923600 -0600
@@ -481,6 +481,9 @@
 	// thread is being started
     volatile BOOL running;
 
+	// stream has not or is no longer started
+	BOOL stopped;
+
     PA_THREAD_ID dwThreadId;
     HANDLE hThread;
 	HANDLE hCloseRequest;
@@ -2687,6 +2742,9 @@
 	if (framesPerBuffer == 0)
 		framesPerBuffer = ((UINT32)sampleRate / 100) * 2;
 
+	stream->stopped = TRUE;
+	stream->running = FALSE;
+
 	// Try create device: Input
 	if (inputParameters != NULL)
     {
@@ -3337,6 +3398,7 @@
 		// Signal: stream running.
 		stream->running = TRUE;
 	}
+	stream->stopped = FALSE;
 
     return result;
 
@@ -3378,6 +3440,7 @@
 	_StreamCleanup(stream);
 
     stream->running = FALSE;
+	stream->stopped = TRUE;
 }
 
 // ------------------------------------------------------------------------------------------