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File version : 7.66.00 built by: WinDDK
Description : HSF_CNXT driver
Copyright : Copyright Conexant Systems, Inc. 2007
Product Version : 7.66.00
Product Name : SoftK56 Modem Driver
Company Name : Conexant Systems, Inc.
Internal name : HSF_CNXT.sys
File Size: 753152 byte(s) 735.512 KB
MD5 : 3dd43cc4d53cb0d83087fa10a256b3f4
SHA1: 86985AB3A9731E385F0DA56C97B64F8AE42D1F3D

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