VirtualBox GUI crashes after opening file selection dialog
Since upgrading from Windows 8 to Windows 8.1, everytime I open a file selection dialog (e.g. selecting a DVD image, choosing the VirtualBox VM folder, ...) the dialog shows and VirtualBox immediately crashes. This problem also occurs if I just copy any path to an existing file/folder into a path textbox and leave the textbox. The process doesn't crash if the file/directory doesn't exist. Only the current process is affected, other VMs or the manager don't also crash. Reinstalling and/or deleting the configuration files doesn't help.
There was already one other (unanswered) report about this problem in the user forums: https://forums.virtualbox.org/viewtopic.php?f=6&t=58421
The VirtualBox logs don't show anything about the error, but I attached them regardless. I've also attached a text file
Exception.txt that contains the exact exception message and a stack trace.