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File Version : 3.00.21
Description : PRISM Wireless NDIS 5 Driver
Copyright : Copyright 2004, Conexant Systems, Inc.
Product Version :
Product Name : PRISM 802.11 Wireless LAN
Company Name : Conexant Systems, Inc.
Internal Name : PRISMA02.sys
File Size: 382912 byte(s) 373.960 KB
MD5 : 68f3d5f0a3507793bc1b4f9150c5b039
SHA1: 491838BE25168AD7779DC7A5F36C5D8D0FF03170

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