http://kb.vmware.com...stateId=1 0 19462003
This error is seen because the VMware virtual bridge can operate at any speed and is constrained only by the processing power of the host computer's processor. When traffic is sent from the guest to the host it can be sent at very fast speeds.  Windows Server 2003 includes security features that interpret network requests at speeds above a specified limit as denial of service attacks. In response, Windows Server 2003 disconnects the client — in this case, the guest VM.  Once it is disconnected Windows will not allow it to connect again.

There are several ways you can avoid such disconnections. Use the one that is most convenient in your environment.

Use the bandwidth limiting feature of VMware Workstation 5 (this workaround does not apply to GSX Server). Using a text editor, add two lines to the configuration (.vmx) file of the affected virtual machine.

If the physical Ethernet adapter on the host computer is running at 100Mbps, use the following two lines:
ethernet0.txbw.limit=100000
ethernet0.rxbw.limit=100000

If the physical Ethernet adapter on the host computer is running at 10Mbps, use the following two lines:
ethernet0.txbw.limit=10000
ethernet0.rxbw.limit=10000

In both examples above, the setting affects the virtual machine's first virtual Ethernet adapter (ethernet0). To modify the setting for a second virtual Ethernet adapter, substitute ethernet1. For a third virtual Ethernet adapter, use ethernet2.

This approach increases the load on the host computer's processor and may affect performance.

Disable large send offload in the network settings for the physical Ethernet adapter on the host computer. Note: This is host operating system dependent, not a VMware setting.

This approach increases the load on the host computer's processor and may affect performance.

Use a gigabit switch. Connecting the host computer's network adapter to a gigabit switch helps because the bridge cannot produce traffic that exceeds the 1000Mbps speed of the switch. This workaround provides the highest throughput when you copy large files.

Change the configuration of the virtual machine to use host-only networking. This change is simple to make and may be appropriate for some virtual machines.

Disable or change the Windows Server 2003 settings on the host to disable the security feature.  Note: this may increase the security risk of the host as it affects connections to external hosts as well.  See: http://support.microsoft.com/kb/898468 for instructions on how to do this.

rem mycacls.bat
@echo off
echo 列出指定目錄下所有文件(含子目錄)的權限
echo 使用格式:%0  目錄
echo 使用範例:%0 d:\bt
echo 結果保存在當前目錄下cacls.out文件中
if "%1"=="" goto MYEND
echo %0 %1 %date% >>cacls.out
for /R %1  %%I  IN (.) do  ( cacls %%I\* >>cacls.out)
:MYEND
echo on

封鎖禁用 USB 隨身碟

如果把每個人電腦上的USB功能關掉或拔走USB連接埠，肯定招來許多抱怨，
因為很多鍵盤、滑鼠等裝置都要用到USB接頭；別煩惱，在WinXP下其實只要
改個登錄檔，就可以單獨封鎖USB隨身碟，而保持其它USB裝置正常運作！

STEP：
1.開始→功能表中，按下「執行」
2.在「執行」對話盒中輸入「regedit」，再按下「確定」
3.在左邊窗格找機碼︰
  「HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR」
   然後在右窗格的「Start」項目上按右鍵，選擇「修改」
    PS：此台電腦必須已安插過一次USB隨身碟，才會出現如上的機碼
4.在「編輯DWORD值」對話盒中，將「數值資料」改為「4」，「底數」要設為
  「十六進位」，再按下「確定」。此後插入USB隨身碟時，電腦將不會有任何
   找到新硬體的反應了
5.若要讓USB隨身碟能夠再度使用，只要在步驟4將「數值資料」改回「3」即可
如果公司怕員工用USB隨身碟帶走資料，就可以用此方法稍做防止


不讓資料寫入USB隨身碟

現在有許多高科技產業禁止員工上班時攜帶隨身碟，為的就是怕公司的資料外洩，而SP2提供了一項功能，讓USB隨身碟只能「讀取」而不能「寫入」，這麼一來老闆就比較不用擔心公司的資料被員工帶走了。

STEP：
開啟登錄編輯程式，在「HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\」下新增一組名為「StorageDevicePolicies」的機碼。
選取剛剛新增的機碼，在右邊的工作窗格按一下滑鼠右鍵，從選單中點選【新增】→【DWORD值】，將這組DWORD值的名稱設為「WriteProtect」。
然後在「WriteProtcet」上按一下滑鼠右鍵，從選單中點選【修改】，接著在「數值資料」下方的空白框中，填入數字「1」後按一下〔確定〕。

※Note：數值資料設定為「0」即可回復USB隨身碟的寫入功能。
最後關閉登錄檔編輯程式的視窗，並重新開機讓剛剛所做的設定生效。
重新開機後，原本可以正常讀寫的USB隨身碟，現在已經無法進行「寫入」的動作，也就是不能複製檔案進去，但是同樣可開啟隨身碟裡原有的檔案（但無法存檔）。

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"AltDefaultUserName"="Administrator"
"AltDefaultDomainName"="MAIN"
"DefaultPassword"="88888"
"AutoAdminLogon"="1"