diff --git a/deploy/qgroundcontrol_installer.nsi b/deploy/qgroundcontrol_installer.nsi
index dca29cb1b430bc963ef31544818ff2bf02a062e5..d2c351a6f692f5b95fe80dd9467bc4edb9d17b33 100644
--- a/deploy/qgroundcontrol_installer.nsi
+++ b/deploy/qgroundcontrol_installer.nsi
@@ -16,20 +16,20 @@ LicenseData ..\license.txt
 Section ""
 
   SetOutPath $INSTDIR
-  File qgroundcontrol\*.*
-  WriteUninstaller $INSTDIR\QGroundcontrol_uninstall.exe
+  File ..\release\*.*
+  WriteUninstaller $INSTDIR\QGroundControl_uninstall.exe
 SectionEnd 
 
 Section "Uninstall"
-  Delete $INSTDIR\QGroundcontrol_uninstall.exe
+  Delete $INSTDIR\QGroundControl_uninstall.exe
   Delete $INSTDIR\*.*
   RMDir $INSTDIR
-  Delete "$SMPROGRAMS\QGroundcontrol\*.*"
-  RMDir "$SMPROGRAMS\QGroundcontrol\"
+  Delete "$SMPROGRAMS\QGroundControl\*.*"
+  RMDir "$SMPROGRAMS\QGroundControl\"
 SectionEnd
 
 Section "create Start Menu Shortcuts"
-  CreateDirectory "$SMPROGRAMS\QGroundcontrol"
-  CreateShortCut "$SMPROGRAMS\QGroundcontrol\uninstall.lnk" "$INSTDIR\QGroundcontrol_uninstall.exe" "" "$INSTDIR\QGroundcontrol_uninstall.exe" 0
-  CreateShortCut "$SMPROGRAMS\QGroundcontrol\QGroundcontrol.lnk" "$INSTDIR\qgroundcontrol.exe" "" "$INSTDIR\qgroundcontrol.exe" 0
+  CreateDirectory "$SMPROGRAMS\QGroundControl"
+  CreateShortCut "$SMPROGRAMS\QGroundControl\uninstall.lnk" "$INSTDIR\QGroundControl_uninstall.exe" "" "$INSTDIR\QGroundControl_uninstall.exe" 0
+  CreateShortCut "$SMPROGRAMS\QGroundControl\QGroundControl.lnk" "$INSTDIR\qgroundcontrol.exe" "" "$INSTDIR\qgroundcontrol.exe" 0
 SectionEnd
\ No newline at end of file
diff --git a/src/lib/qextserialport/win_qextserialport.h b/src/lib/qextserialport/win_qextserialport.h
index 1de6138c4f3bdda56b203510a57dde7e2c095a10..d3358f2d5b67648674db1513662a6b899005f2c4 100644
--- a/src/lib/qextserialport/win_qextserialport.h
+++ b/src/lib/qextserialport/win_qextserialport.h
@@ -5,6 +5,16 @@
 #include <windows.h>
 #include <QThread>
 
+/* These baudrates work on windows, but are not part of the windows headers */
+#ifndef CBR_230400
+#define CBR_230400 230400
+#endif
+#ifndef CBR_460800
+#define CBR_460800 460800
+#endif
+#ifndef CBR_921600
+#define CBR_921600 921600
+#endif
 
 /*if all warning messages are turned off, flag portability warnings to be turned off as well*/
 #ifdef _TTY_NOWARN_
diff --git a/src/uas/UAS.cc b/src/uas/UAS.cc
index 3a3b61782e9ed059ee01cc6507381fbe6594fd7b..7fc1a66aebdf09878ee138b03d2015baf272b3d9 100644
--- a/src/uas/UAS.cc
+++ b/src/uas/UAS.cc
@@ -26,6 +26,19 @@
 #include "LinkManager.h"
 #include "SerialLink.h"
 
+#ifndef M_PI
+#define M_PI        3.14159265358979323846  /* pi */
+#endif
+
+#ifndef M_PI_2
+#define M_PI_2      1.57079632679489661923  /* pi/2 */
+#endif
+
+#ifndef M_PI_4
+#define M_PI_4      0.78539816339744830962  /* pi/4 */
+#endif
+
+
 
 UAS::UAS(MAVLinkProtocol* protocol, int id) : UASInterface(),
 uasId(id),