added:

resources/windows/psvince.dll
modified:
  resources/windows/OpenLP-2.0.iss
  scripts/windows-builder.py

resources/windows/OpenLP-2.0.iss

@@ -65,6 +65,7 @@ Name: quicklaunchicon; Description: {cm:CreateQuickLaunchIcon}; GroupDescription
 
 [Files]
 Source: ..\..\dist\OpenLP\*; DestDir: {app}; Flags: ignoreversion recursesubdirs createallsubdirs
+Source: psvince.dll; Flags: dontcopy
 ; NOTE: Don't use "Flags: ignoreversion" on any shared system files
 
 [Icons]
@@ -86,6 +87,9 @@ Root: HKCR; Subkey: "OpenLP\DefaultIcon"; ValueType: string; ValueName: ""; Valu
 Root: HKCR; Subkey: "OpenLP\shell\open\command"; ValueType: string; ValueName: ""; ValueData: """{app}\OpenLP.exe"" ""%1"""
 
 [Code]
+function IsModuleLoaded(modulename: String ):  Boolean;
+external 'IsModuleLoaded@files:psvince.dll stdcall';
+
 function GetUninstallString(): String;
 var
   sUnInstPath: String;
@@ -126,6 +130,19 @@ begin
     Result := 1;
 end;
 
+function InitializeSetup(): Boolean;
+begin
+  Result := true;
+  while IsModuleLoaded( 'OpenLP.exe' ) and Result do
+  begin
+    if MsgBox( 'Openlp is currently running, please close it to continue the install.',
+      mbError, MB_OKCANCEL ) =  IDCANCEL then
+	begin
+	  Result := false;
+	end;
+  end;
+end;
+
 procedure CurStepChanged(CurStep: TSetupStep);
 begin
   if (CurStep=ssInstall) then

scripts/windows-builder.py

@@ -225,6 +225,8 @@ def copy_windows_files():
         os.path.join(dist_path, u'OpenLP.ico'))
     copy(os.path.join(winres_path, u'LICENSE.txt'),
         os.path.join(dist_path, u'LICENSE.txt'))
+    copy(os.path.join(winres_path, u'psvince.dll'),
+        os.path.join(dist_path, u'psvince.dll'))
     if os.path.isfile(os.path.join(helpfile_path, u'Openlp.chm')):
         print u'        Windows help file found'
         copy(os.path.join(helpfile_path, u'Openlp.chm'),