Please capitalize where necessary: the network activity icon was used by microsoft in pre-windows 7 operating systems to indicate network activity in the windows system tray.
A: The network activity icon was used by Microsoft in pre-Windows 7 operating systems to indicate network activity in the Windows System Tray.

Please capitalize where necessary: contains the code for the number series that will be used to assign numbers to invoices.
A: Contains the code for the number series that will be used to assign numbers to invoices.

Please capitalize where necessary: counted in a census in nybølle, hillerslev, denmark
A: Counted in a census in Nybølle, Hillerslev, Denmark

Please capitalize where necessary: description: red-billed tropicbird in flight.
A:
Description: Red-billed Tropicbird in flight.