As SDL WorldServer users my team is required to regularly upload to the server as opposed to keep working off-line and at the end do one upload. This means a regular creation and importing of return packages.

We uncovered a bug in SDL Trados Studio 2015 that the handles created by the "Create Return Package" window in the Files View are not released. The function seems to create a new instance of the window each time the function is called.

This results in a constantly growing number of handles.

Once the count reaches 2360 or so (per the Task Manager), the  "Error creating window handle" exception is thrown. If this exception is thrown in the Editor View, Studio crashes. If it happens in the Files View, you just get a non-responsive application.

So the question I have, is there an existing workaround?

Here is the stack trace:

System.ComponentModel.Win32Exception was unhandled by user code
  HResult=-2147467259
  Message=Error creating window handle.
  Source=System.Windows.Forms
  ErrorCode=-2147467259
  NativeErrorCode=1158
  StackTrace:
       at System.Windows.Forms.NativeWindow.CreateHandle(CreateParams cp)
       at System.Windows.Forms.Control.CreateHandle()
       at System.Windows.Forms.ProgressBar.CreateHandle()
       at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
       at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
       at System.Windows.Forms.Control.CreateControl()
       at System.Windows.Forms.Control.OnVisibleChanged(EventArgs e)
       at System.Windows.Forms.ScrollableControl.OnVisibleChanged(EventArgs e)
       at System.Windows.Forms.Control.OnParentVisibleChanged(EventArgs e)
       at System.Windows.Forms.Control.OnVisibleChanged(EventArgs e)
       at System.Windows.Forms.ScrollableControl.OnVisibleChanged(EventArgs e)
       at System.Windows.Forms.Form.OnVisibleChanged(EventArgs e)
       at System.Windows.Forms.Control.SetVisibleCore(Boolean value)
       at System.Windows.Forms.Form.SetVisibleCore(Boolean value)
       at System.Windows.Forms.Control.set_Visible(Boolean value)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.RunDialog(Form form)
       at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
       at System.Windows.Forms.Form.ShowDialog()
       at Sdl.Desktop.Platform.WinForms.JobProgressDialogWrapper.ShowDialog(IWin32Window owner)
       at Sdl.Desktop.Platform.Implementation.Services.JobService.ExecuteJobWithProgress(IExecutableJob job)
       at Sdl.Desktop.Platform.Implementation.Services.JobService.ScheduleJob(IJobRequest jobRequest)
       at Sdl.TranslationStudio.Api.Editor.AbstractInternalDocument.Save(Boolean closeAfterSave)
       at Sdl.TranslationStudio.Api.Editor.AbstractInternalDocument.Save()
       at Sdl.TranslationStudioAutomation.IntegrationApi.EditorController.Save(Document document)
       at SubAsst.UploadButton.DoUpload()
       at SubAsst.UploadButton.Execute()
       at Sdl.Desktop.IntegrationApi.AbstractAction.Sdl.Desktop.IntegrationApi.Extensions.Internal.IAction.Execute()
       at Sdl.Desktop.IntegrationApi.Internal.Adaptors.InternalActionAdaptor.Execute()
       at Sdl.Desktop.Platform.Implementation.CommandBars.ActionService.<>c__DisplayClass3.<ExecuteAction>b__2()
       at Sdl.Desktop.Platform.Implementation.Services.Log.Resources(Object message, Action action)
       at Sdl.Desktop.Platform.Implementation.CommandBars.ActionService.ExecuteAction(IAction action, ActionOrigin origin, Boolean allowToggle)
       at Sdl.Desktop.Platform.WinForms.IgCommandBarAction.Execute()
       at Sdl.Desktop.Platform.WinForms.IgCommandBarAction._lazyButtonTool_ToolClick(Object sender, ToolClickEventArgs e)
       at Infragistics.Win.UltraWinToolbars.ToolBase.OnToolClick(ToolClickEventArgs e)
       at Infragistics.Win.UltraWinToolbars.UltraToolbarsManager.OnToolClick(ToolClickEventArgs e)
       at Infragistics.Win.UltraWinToolbars.UltraToolbarsManager.FireEvent(ToolbarEventIds id, EventArgs e)
       at Infragistics.Win.UltraWinToolbars.ToolBase.OnToolClick()
       at Infragistics.Win.UltraWinToolbars.ButtonToolUIElement.DoClickProcessing(MouseEventArgs e)
       at Infragistics.Win.UltraWinToolbars.ButtonToolUIElement.OnMouseUp(MouseEventArgs e)
       at Infragistics.Win.ControlUIElementBase.ProcessMouseUpHelper(Object sender, MouseEventArgs e)
       at Infragistics.Win.ControlUIElementBase.ProcessMouseUp(Object sender, MouseEventArgs e)
       at Infragistics.Win.Utilities.ProcessEvent(Control control, ProcessEvent eventToProcess, EventArgs e)
       at Infragistics.Win.UltraControlBase.OnMouseUp(MouseEventArgs e)
       at Infragistics.Win.UltraWinToolbars.UltraToolbarsDockArea.OnMouseUp(MouseEventArgs e)
       at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
       at System.Windows.Forms.Control.WndProc(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
  InnerException: