Visio 2010 issue: Visio crashes on moving custom stencil window (+workaround)

[Nikolay]

Hello,
It seems that due to some changes in stencil layout Visio 2010 got some issue with custom stencils
(it crashes on moving custom docked stencil)

To reproduce:

1. Create a new drawing.
2. Add a custom stencil window using the following VBA code (the important part is that window should be of type "visDockedStencilAddon"):

Code

ActiveWindow.Windows.Add "MyWindow", 0, visDockedStencilAddon

3. Drag this new custom stencil window down in vertical direction (using mouse)

4. Visio 2010 crashes 

To workaround this you should specify "bstrMergeID" and "bstrMergeClass" for the "add window" function:

Code

ActiveWindow.Windows.Add "MyWindow", 0, visDockedStencilAddon,,,,,"MyWindow","MyWindow"

NB: This worked in Visio 2003, 2007.