Crack termsrv.dll, remove the Concurrent Remote Desktop sessions limit, allow multi-user login in XP/Vista at the same time.

This is only a file patch for termsrv.dll.
More setting for RDP, please google it.

The meaning of the last number of checksum:
1 - Original file, without any modification.
9 - The file has been modified.

Notes:
1, Can oprate in normal mode. Do not need to enter safe mode.

2, Choose the corresponding patcher based on you Windows:
For 32bit(x86): UniversalTermsrvPatch-x86.exe
For 64bit(amd64): UniversalTermsrvPatch-x64.exe

3, Require administrator rights. Right-click the exe file, select Run as Administrator.

4, After patch, Restart computer to take effect.

5, Backup file: \windows\system32\termsrv.dll.backup.

Error ID number: c1030af0
Error Message

The operation failed due to an invalid format in the HTTP request. Verify that the host header is correct for the virtual server.

Possible Causes

This error can occur if you have multiple IP addresses bound to the network card on the Exchange server and you have the default Web site bound to the secondary IP address.

An invalid host header or IP address has been set for the default Web site

Incorrect IP addresses or host header is set on the cluster virtual server.

Troubleshooting

Try setting the default Web site to All Unassigned and then reopen the ESM and try to expand public folders.

Correct the host header value or remove it completely.

http://kb.vmware.com/selfservice/microsi...
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.