From Ben Key at Freedom Scientific:

10/27:
I have been getting a crash in JavaFerret recently. The crash is as follows.

Unhandled exception at 0x00000000528B7150 (WindowsAccessBridge-64.dll) in JavaFerret.exe: 0xC000041D: An unhandled exception was encountered during a user callback.

My test environment is as follows.
· Windows 10 Pro 64-bit
· Java SE 8u66 64-bit
· SwingDemo_v6.1.jar from http://securetechnologies.com/CCAT/SwingDemo/
· JavaFerret is configured to monitor the same events as JAWS.

The crash occurs very soon after the Java application starts.

11/3:
... in the AccessBridgeDialogProc function. The data types of the wParam and lParam parameters are wrong. They are UINT and LONG. They should be WPARAM and LPARAM. This caused a problem in the handler for the WM_COPYDATA message. The lParam parameter is used as a pointer, only it is truncated. This caused an exception on the following line.
    package = (char *) sentToUs->lpData;

Correcting the data types of these parameters resolved this issue.