diff --git a/windows/main.cpp b/windows/main.cpp
index 00ae26c2..26a04e9e 100644
--- a/windows/main.cpp
+++ b/windows/main.cpp
@@ -1,6 +1,7 @@
 // 6 april 2015
 #include "uipriv_windows.hpp"
 
+std::map<UINT_PTR, TimerHandler> timerHandlers;
 static HHOOK filter;
 
 static LRESULT CALLBACK filterProc(int code, WPARAM wParam, LPARAM lParam)
@@ -131,4 +132,8 @@ void uiQueueMain(void (*f)(void *data), void *data)
 
 void uiTimer(int milliseconds, int (*f)(void *data), void *data)
 {
+	UINT_PTR id = timerHandlers.size() + 1;
+	if (SetTimer(utilWindow, id, milliseconds, NULL) == 0)
+		logLastError(L"SetTimer()");
+	timerHandlers[id] = TimerHandler(f, data);
 }
diff --git a/windows/uipriv_windows.hpp b/windows/uipriv_windows.hpp
index 3244b7b4..c96d7a1a 100644
--- a/windows/uipriv_windows.hpp
+++ b/windows/uipriv_windows.hpp
@@ -77,6 +77,17 @@ extern void setWindowInsertAfter(HWND hwnd, HWND insertAfter);
 extern HWND getDlgItem(HWND hwnd, int id);
 extern void invalidateRect(HWND hwnd, RECT *r, BOOL erase);
 
+struct TimerHandler {
+	int(*f)(void *data);
+	void *data;
+	TimerHandler() {}
+	TimerHandler(int(*f)(void *data), void *data) {
+		this->f = f;
+		this->data = data;
+	}
+};
+extern std::map<UINT_PTR, TimerHandler> timerHandlers;
+
 // text.cpp
 extern WCHAR *windowTextAndLen(HWND hwnd, LRESULT *len);
 extern WCHAR *windowText(HWND hwnd);
diff --git a/windows/utilwin.cpp b/windows/utilwin.cpp
index 28950674..7a27df4a 100644
--- a/windows/utilwin.cpp
+++ b/windows/utilwin.cpp
@@ -18,6 +18,7 @@ static LRESULT CALLBACK utilWindowWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, L
 {
 	void (*qf)(void *);
 	LRESULT lResult;
+	UINT_PTR id;
 
 	if (handleParentMessages(hwnd, uMsg, wParam, lParam, &lResult) != FALSE)
 		return lResult;
@@ -36,6 +37,15 @@ static LRESULT CALLBACK utilWindowWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, L
 		qf = (void (*)(void *)) wParam;
 		(*qf)((void *) lParam);
 		return 0;
+	case WM_TIMER:
+		id = (UINT_PTR)wParam;
+		TimerHandler timer = timerHandlers[id];
+		if (!timer.f(timer.data)) {
+			if (!KillTimer(utilWindow, id))
+				logLastError(L"KillTimer()");
+			timerHandlers.erase(id);
+		}
+		return 0;
 	}
 	return DefWindowProcW(hwnd, uMsg, wParam, lParam);
 }