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File Version :
Description : NDIS 4.0 Driver
Copyright : Copyright 2002-2003 Silan Inc. All Rights Reserved.
Product Version :
Product Name : Driver for Silan 10/100M PCI NIC
Company Name : Silan Inc.
Internal Name : Slpnnt40.SYS
File Size: 13662 byte(s) 13.350 KB
MD5 : 60ca8f7b699963a85ea73f76a0f75797
SHA1: 5406EE5E29066B4D04DB26CC514B68136E6D16DD

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