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File version : V4.20
Description : Curitel USB Composite Device Driver
Copyright : Copyright (c) MCCI 1997-2004
Product Version : V4.20
Product Name : Curitel USB Composite Device
Company Name : MCCI
Internal name : cur_bus.sys
File Size: 52384 byte(s) 51.160 KB
MD5 : 936655ee9e6db86e1accad1c2cee1053
SHA1: 3E73BBB34D8AA30A941C79403C7E33A9240F62C6

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