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File Version :
Description : USBIO Driver
Copyright : Copyright 1998-2005 by Thesycon GmbH
Product Version : 2.30
Product Name : Universal USB Device Driver
Company Name : Thesycon GmbH, Germany
Internal Name : usbio_x64
File Size: 47104 byte(s) 46.0 KB
MD5 : cf2a6c74b63200689d7d9f09963602dd
SHA1: 4C64FB27D6C17808F0026475EEF5738BC5F69FAE

Download ETH503.SYS
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How to Install ETH503.SYS
Repair Sys ProblemsFixing a corrupted or missing ETH503.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.