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File Version : 1, 0, 0, 0
Description : LOOPBACK.sys
Copyright : Copyright 1999 Walter Oney Software
Product Version : 1, 0, 0, 0
Product Name :
Company Name : Walter Oney Software
Internal Name : LOOPBACK
File Size: 17408 byte(s) 17.0 KB
MD5 : 40622146460cd0e3a58c63067df27b14
SHA1: 51213AF75621B6DB51634AB0C26D34A1C389A8A0

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How to Install LMOUFLTR.SYS
Repair Sys ProblemsFixing a corrupted or missing LMOUFLTR.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.