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File version : 12.1.808.5
Description : Symantec CMC Firewall Teefer2
Copyright : Copyright 2010 Symantec Corporation. All rights reserved. Use of this product is subject to license terms.
Product Version : 12.1.808.5
Product Name : Symantec CMC Firewall
Company Name : Symantec Corporation
Internal name : Teefer2
File Size: 121136 byte(s) 118.304 KB
MD5 : c6d87dcf289c5d641acfd14989f44303
SHA1: 73346A635D8BDD50E1A37C32EE5F787EEED39D48

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How to Install teefer.sys
Repair Sys ProblemsFixing a corrupted or missing teefer.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.