hi
i have a NETWORK in my home with 2 PCs and they use same OS(win xp sp2)
my question is that:
how to change bandwidth of a lan card
usually the bandwidth is 100 mb or 1000 mb
but i want change it to under 1 mb and lesser like 64 kb
10 meg is about as low as you go.Yeah changing the speed of your lan card isn't a feasible solution. You would need to use some kind of software to limit the amount of bandwidth the system can use... I can't think of one RIGHT now but I'll see if I can find something.

I will need to know what operating system the computer runs though.i told they use Windows XP pro SP2I guess my question would be ...why ? ?patio, you are mean The question is "how?", not "why?".

With some firewalls you have that option, but I don't know an EXAMPLE. And some other programs do the same, but I was never interested to view the problem in that way, I ussually ask myself "how to INCREASE bandwidth?", "how to make a better network, how to improve an existing network?".

It's first time in my life when I hear someone that asks to DECREASE network performances.

http://www.google.ro/search?q=bandwidth+limiter&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

But it is different from what you ask...let me that tell a describe:
i told i have 2 PCs in network with crossover cable
PC B by PC A is connect to internet that mean PC A use 2 lan card.
i dont need to SHARING in my network.my internet connection speed is 512 kb
i want to give 384kb to PC A and 128kb to PC B
in fact i want set a speed limition for PC B
this is my reason






See the link in my other post. I searched on a search engine (you can try on altavista, yahoo or something else) with "bandwidth limiter". You may try with "network shaper", "bandwidth shaper" etc

Your last post says something else than your first post.