Network throughput tester

Question

Can someone recommend a local network throughput tester?

Specifically, testing throughput between network clients, not to/from the internet.

Required Features:

• Test throughput between clients, in both directions
• Quickly determine throughput (aka network thruput)
• Reliable: when there is no network traffic, results should be consistent
• Windows compatible
• No advertising within application
• Works offline (meaning on networks not connected to the internet)
• Does not install any drivers
• Gratis

Preferred (but not required) Features:

• Portable (no installation)
• Determine latency within network

Bonus Feature (not required):

• Open-source

Answer 1

Microsoft has a free tool that does what you want. Its called the NTttcp Utility. I am fairly positive it meets all your listed requirements.

I have used it and it works and is fairly easy to use.