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File Version : 5.1.2600.0 (XPClient.010817-1148)
Description : Philips ToUcam camera minidriver
Copyright : Copyright (C) 2001 Philips CE
Product Version : 5.1.2600.0
Product Name : Microsoft Windows Operating System
Company Name : Microsoft Corporation
Internal Name : camdrv21.sys
File Size: 223232 byte(s) 218.0 KB
MD5 : 5f68a3ab60262e3bf5b5c6c926e53525
SHA1: 312419F66125A7F8D484FE6653A30E6551E46618

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