diff -urN qt-all-opensource-src-4.3.5.orig/src/gui/kernel/qwidget_win.cpp qt-all-opensource-src-4.3.5/src/gui/kernel/qwidget_win.cpp
--- qt-all-opensource-src-4.3.5.orig/src/gui/kernel/qwidget_win.cpp	2008-05-26 13:06:56.000000000 +0400
+++ qt-all-opensource-src-4.3.5/src/gui/kernel/qwidget_win.cpp	2008-09-04 18:24:04.000000000 +0400
@@ -260,11 +260,15 @@
     if (popup)
         flags |= Qt::WindowStaysOnTopHint; // a popup stays on top
 
+// mblsha: we disable this in order to get truly borderless windows
+// that could be minimized via taskbar button clicking
+#if 0
     if (flags & (Qt::WindowMinMaxButtonsHint | Qt::WindowContextHelpButtonHint)) {
         flags |= Qt::WindowSystemMenuHint;
         flags |= Qt::WindowTitleHint;
         flags &= ~Qt::FramelessWindowHint;
     }
+#endif
 
     if (sw < 0) {                                // get the (primary) screen size
         sw = GetSystemMetrics(SM_CXSCREEN);