Port Range Mapping SBS 2003 Standard
or port forwarding multiple ports.
simply create a batch file with
FOR /L %%P IN (10012,1,11000) DO NETSH ROUTING IP NAT ADD PORTMAPPING INTERNET UDP 0.0.0.0 %%P 192.168.16.32 %%P
this would map ports UDP 10012 - 11000 from the INTERNET netwrok interface to 192.168.16.32
Change UDP to TCP as applies to your situation.