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File Version : 5.374.0214.2000
Description : NDIS 4.0 driver
Copyright : 1994-1999, Compex Corp.All Rights Reserved.
Product Version : 5.374.0214.2000
Product Name : Compex RE100TX Based Fast Ethernet Adapter
Company Name : Compex Corporation
Internal Name : RETKW98.SYS
File Size: 32484 byte(s) 31.740 KB
MD5 : 605444b6ef5d893eda972adc7c3ba18f
SHA1: 8B850D8603FA2E219C3EA97B3E044FC877133AEC

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