Hi Found this article earlyer on today
Speed Up File Access on a Peer to Peer Network XP
Are you having problems with slow file access over a peer to peer network? Does it take forever for your Windows XP computer to access files over the network? If so, it might be a "Quality of Service" problem (QoS). Jim Faliveno tells us that one of his ace employees, John McCarthy, discovered that disabling QoS on the Windows XP machine fixes the problem! Here's how you do it:
1. Click Start and click the Control Panel.
In the Control Panel window, make sure you're in Classic View. If you're in Category View, click the link on the left side of the window that says Switch to Classic View.
2. Double click the Network Connections icon to open the Network Connections applet. 4. Right click on the Local Area Connection entry in the Network Connections window. Click the Properties command.
3. Click on the General tab in the Local Area Connection Properties dialog box. Scroll through the list of items in the This connection uses the following items list and find the QoS Packet Scheduler entry. Click the checkbox to remove the checkmark. Click OK.
You might notice a momentary disconnection from the network, but it should come back quickly. Let us know if this tip helps you out!
well i can say it worked for my ive noticed a big difference with downloads and uploads