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File Version : V4.50 built by: WinDDK
Description : Sony Ericsson Device 1029 USB Ethernet Emulation (NDIS 5 Miniport)
Copyright : Copyright (c) MCCI Corporation 1997-2009
Product Version : V4.50
Product Name : Sony Ericsson Device 1029 USB Ethernet Emulation
Company Name : MCCI Corporation
Internal Name : s1029nd5.sys
File Size: 34856 byte(s) 34.40 KB
MD5 : 90276f1d842eb96f82510e73fdb792ad
SHA1: FB0D0AE17E0013806466715528E886F8250430C0

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