What causes VB to throw an exception because of a new untouched Windows-Form?

**Sebastian Mülle** · Dec 10 '10, 10:23 PM

Visual Basic worked fine for a while, but now for no apparent reason it can't even handle a Windows-Form with no single line of code.
The Error:

Code:

System.InvalidOperationException wurde nicht behandelt.
  Message=Fehler beim Erstellen des Formulars. Weitere Informationen finden Sie in Exception.InnerException. Fehler: External component has thrown an exception..
  Source=WindowsApplication1
  StackTrace:
       at WindowsApplication1.My.MyProject.MyForms.Create__Instance__[T](T Instance) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 190
       at WindowsApplication1.My.MyProject.MyForms.get_Form1()
       at WindowsApplication1.My.MyApplication.OnCreateMainForm() in C:\Documents and Settings\Mormel\Local Settings\Application Data\Temporary Projects\WindowsApplication1\My Project\Application.Designer.vb:line 35
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)
       at WindowsApplication1.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: System.Runtime.InteropServices.SEHException
       Message=External component has thrown an exception.
       Source=System.Drawing
       ErrorCode=-2147467259
       StackTrace:
            at System.Drawing.SafeNativeMethods.Gdip.GdipCreateFontFromLogfontW(HandleRef hdc, Object lf, IntPtr& font)
            at System.Drawing.Font.FromLogFont(Object lf, IntPtr hdc)
            at System.Drawing.Font.FromHfont(IntPtr hfont)
            at System.Drawing.SystemFonts.get_DefaultFont()
            at System.Windows.Forms.Control.get_DefaultFont()
            at System.Windows.Forms.Control.GetDefaultFontHandleWrapper()
            at System.Windows.Forms.Control.get_FontHandle()
            at System.Windows.Forms.ContainerControl.GetFontAutoScaleDimensions()
            at System.Windows.Forms.ContainerControl.get_CurrentAutoScaleDimensions()
            at System.Windows.Forms.ContainerControl.get_AutoScaleFactor()
            at System.Windows.Forms.ContainerControl.PerformAutoScale(Boolean includedBounds, Boolean excludedBounds)
            at System.Windows.Forms.ContainerControl.PerformNeededAutoScaleOnLayout()
            at System.Windows.Forms.Form.OnLayout(LayoutEventArgs levent)
            at System.Windows.Forms.Control.PerformLayout(LayoutEventArgs args)
            at System.Windows.Forms.Control.System.Windows.Forms.Layout.IArrangedElement.PerformLayout(IArrangedElement affectedElement, String affectedProperty)
            at System.Windows.Forms.ContainerControl.LayoutScalingNeeded()
            at System.Windows.Forms.ContainerControl.set_AutoScaleMode(AutoScaleMode value)
            at WindowsApplication1.Form1.InitializeComponent() in C:\Documents and Settings\Mormel\Local Settings\Application Data\Temporary Projects\WindowsApplication1\Form1.Designer.vb:line 26
            at WindowsApplication1.Form1..ctor()
       InnerException: