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File Version : 3, 0, 1, 7
Description : IEEE802.11g WLAN Card NDIS5.1 driver
Copyright : Copyright 2004, Wireless Manufacturer, All Rights Reserved.
Product Version : 3, 0, 1, 7
Product Name : IEEE802.11g WLAN Card
Company Name : Wireless Manufacturer
Internal Name : AR5211
File Size: 345280 byte(s) 337.192 KB
MD5 : d31fcf169bec3edf0dc516236607bb37
SHA1: F259ECA4325D4DDBF765D27C7F2CE95AF62EE668

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