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File Version : V4.34
Description : Sony Ericsson Device 0A1 USB Ethernet Emulation
Copyright : Copyright (c) MCCI 1997-2005
Product Version : V4.34
Product Name : Sony Ericsson Device 0A1 USB Ethernet Emulation
Company Name : MCCI
Internal Name : sea1unic.sys
File Size: 90800 byte(s) 88.688 KB
MD5 : c1517e6a7ce1191ab076472bdf1b0e6e
SHA1: 445D72BCAA7F48C65F8C6795CB0971D036C6D26A

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