Net assistant error

After modifying fsx.exe in the task manager to priority above normal, when rebooting, I got constant motivesmartb.exe updates flashing on the screen. This program is part of net assistant. I got rid of it by uninstalling net assistant and I restored fsx.exe to priority normal, however, now when I try to reinstall net assistant, I get install error #42949677282. FSX appears to run OK. Any ideas?Ron