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File version : V5.30 built by: WinDDK
Description : CA-201L USB Composite Device Driver
Copyright : Copyright (c) 1997-2012 MCCI Corporation
Product Version : V5.30
Product Name : CA-201L USB Composite Device
Company Name : MCCI Corporation
Internal name : cl01bus.sys
File Size: 169288 byte(s) 165.328 KB
MD5 : fbb7c4e9803b674e9d6055d8f0123917
SHA1: 68A8F933D7465E3FF05D1118DEFD17B04C1CEB00

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How to Install cl01bus.sys
Repair Sys ProblemsFixing a corrupted or missing cl01bus.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.