After spending 2 full hours I managed to find the culprit for an IDE crash (access violation in VCL210). The cause was …drum roll please… CnPack!
There was a palette in IDE’s main tool bar called MSDN Help. However, when I right click to configure the toolbar, the palette was not listed there to show it/hide it. This probably cause the crash when I tried to remove it by dragging it out of the toolbar.
Yes I had the same issue, you can remove this toolbar by disabling MSDN Help wizard in CnPack options
Yes, I disabled that package and it worked for a while. Now the crash appears again when I shutdown the IDE.