好用的开源虚拟串口软件，有源代码，超值.安装方法见压缩包内的ReadMe.txt。

ComEmulDrv serial port bridge driver

====================================

Copyright (c) 2002

MixW team

http://www.mixw.net

This driver emulates two serial ports and provides communication between

them under Windows 2000/XP.

Versions starting from 1.0.0.2 allow using up to 10 pairs of emulated

serial ports.

Copyrights

==========

This software is provided "AS IS" without any warranty.

You may use this driver for any purpose, freely copy and distribute

this archive in unmodified state.

If you use the cource code of this driver or its parts in your own

applications (requires Windows 2000 DDK), please leave references

to http://www.mixw.net.

Installation instructions

=========================

1. Install the driver

2. Configure the driver using Device Manager

3. Reboot the computer

Windows 2000:

=============

Installing the driver

1. Open Control Panel

2. Run "Add/Remove Hardware"

3. At "Welcome to Add/Remove hardware" screen, click "Next"

4. Select "Add/Troubleshoot a device and click "Next"

5. Wait

6. In Devices box, select "Add a new device", click "Next"

7. Select "No, I want to select the hardware from a list" and click "Next"

8. From Hardware types list, select "Multi-port serial adapters" and click "Next"

9. Click "Have Disk"

10. Click "Browse" and locate ComEmulDrv.inf file, then click "Open"

11. In "Install From Disk" dialog, click "OK"

12. Select "MixW serial port bridge" and click "Next"

13. Click "Next"

14. In "Digital Signature Not Found" dialog, click "Yes"

15. Click "Finish"

Configuring

1. Open "System" from Control Panel

2. Select "Hardware" tab

3. Click "Device Manager"

4. Locate "MixW serial port bridge" under "Multi-port serial adapters"

5. Right-click on it and choose "Properties"

6. Select Properties tab

7. Choose first and second emulated ports for each pair

WARNING: Choosing ports which already exist may cause driver conflicts!

8. Click OK and reboot the computer

9. Emulated ports DO NOT appear under "Ports (COM LPT)" in Control Panel

Windows XP:

===========

(Almost the same)

Registry

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The driver stores its settings in the registry in

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MixWComEmul\……