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File Version : 4.00
Description : COLORADO FC-xx Adapter Board Driver
Copyright : Copyright (C) Microsoft Corp. 1981-1996
Product Version : 4.00
Product Name : Microsoft(R) Windows NT(TM) Operating System
Company Name : Microsoft Corporation
Internal Name : cmsfcxx.sys
File Size: 9008 byte(s) 8.816 KB
MD5 : 9914cfebcb05d6acb74e970b71e14436
SHA1: C1090EDC64EB652EBAE49A51523FE7A538016B0D

Download class2.sys
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How to Install class2.sys
Repair Sys ProblemsFixing a corrupted or missing class2.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.