Win10 Anniversary Update bld 14393.82
AMD Phenom(tm) II X4 925 Processor
Ever since installing Sibelius 8.4.2 (Win_92671) over 8.4.1, the AvidApplicationManager.exe and AvidAppManHelper.exe processes start and quit in a roughly 1 minute cycle. During execution, a DOS box appears and disappears. AvidAppManHelper consumes ~25%CPU and sends the C: into 100% usage during its run time.
Visual indications include increasing number of Avid AppMan icons in the system tray and nearly instantaneous DOS box popup / closures.