After the latest update during March, 2013, noticed a runtime error as follows

Runtime error 216 at 12FC4BE had something to do with the explorer

And from the Event Viewer, the error shows the faulting module name is ShellMenu.dll

Initially, tried to install but failed with several crashes

Faulting application name: Au_.exe, version:, time stamp: 0x4bc06cd3

Faulting module name: ShellMenu.dll, version: 1.0.4813.4096, time stamp: 0x51362963

Exception code: 0xc0000005

Fault offset: 0x00004fbe

Faulting process id: 0x1b50

Faulting application start time: 0x01ce24eceb5eee1c

Faulting application path: C:UserskitipanAppDataLocalTemp~nsu.tmpAu_.exe

Faulting module path: C:Program Files4SyncShellMenu.dll

Report Id: 2befc7ab-90e0-11e2-bba5-1c6f65d70e71

Had to install the app and then remove it successfully.