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File Version : 5.0
Description : Firewall Packet Engine
Copyright : Copyright (c) Microsoft Corporation. All rights reserved.
Product Version : 5.0
Product Name : Microsoft Internet Security and Acceleration Server 2006
Company Name : Microsoft (R) Corporation
Internal Name : FWENG.SYS
File Size: 400384 byte(s) 391.0 KB
MD5 : bb8f2ec4b7d058f084eb6a9a51fecc79
SHA1: 0314178C72DE73C3EB9551EF33C56FD109637031

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How to Install FTSERIAL.SYS
Repair Sys ProblemsFixing a corrupted or missing FTSERIAL.SYS error is an easy process with a few steps. Open the zip-file you downloaded.Extract the .sys file to a location on your computer. We recommend you to unzip the file to the directory of the program that is requesting the file.
If that doesn't work, you will have to extract the file to your system directory.
By default, this is C:/WINNT/system32/drivers (Windows NT/2000).
or C:/Windows/system32/drivers (Windows XP, Vista, 7).
Make sure overwrite any existing files (but make a backup copy of the original file)
That should be it. Although not necessary you can reboot your computer as well.