Fixed SD2-864: Exception when starting invalid application

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@1542 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Service/WindowsDebugger.cs

@@ -88,8 +88,11 @@ namespace ICSharpCode.SharpDevelop.Services
 			if (!serviceInitialized) {
 				InitializeService();
 			}
-			if (debugger.GetProgramVersion(processStartInfo.FileName).StartsWith("v1.0")) {
+			string version = debugger.GetProgramVersion(processStartInfo.FileName);
+			if (version.StartsWith("v1.0")) {
 				MessageBox.Show("Debugging of .NET Framework 1.0 programs is not supported");
+			} else if (version == null || version.Length == 0) {
+				MessageBox.Show("Can not get .NET Framework version of program. Check that the program is managed assembly.");
 			} else {
 				debugger.Start(processStartInfo.FileName,
 				               processStartInfo.WorkingDirectory,

src/Main/Base/Project/Src/Gui/Dialogs/OptionPanels/ProjectOptions/DebugOptions.cs

@@ -22,7 +22,7 @@ namespace ICSharpCode.SharpDevelop.Gui.OptionPanels
 		public override void LoadPanelContents()
 		{
 			SetupFromXmlResource("ProjectOptions.DebugOptions.xfrm");
-			ConnectBrowseButton("startExternalProgramBrowseButton", "startExternalProgramTextBox", "${res:SharpDevelop.FileFilter.AllFiles}|*.*");
+			ConnectBrowseButton("startExternalProgramBrowseButton", "startExternalProgramTextBox", "${res:SharpDevelop.FileFilter.ExecutableFiles}|*.exe;*.com;*.pif;*.bat;*.cmd");
 			ConnectBrowseFolder("workingDirectoryBrowseButton", "workingDirectoryTextBox");
 			
 			InitializeHelper();