Try the 30 day evalutation of ByteOMeter:
The trial version of ByteOMeter is fully functional for 30 days. If you wish to continue using ByteOMeter after this
period you can register to obtain full functionality and get free updates in the future.
Please note that Windows Vista is NOT currently supported.
Minimal System Requirements:
Windows 2000/XP/2003 Server
Pentium II CPU
32 MB RAM
5 MB harddisk space