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File Version : 3.51
Description : ATI AT1700 EtherCoupler network driver
Copyright : Copyright Microsoft Corp. 1981-1995
Product Version : 3.51
Product Name : Microsoft Windows NT(TM) Operating System
Company Name : Microsoft Corporation
Internal Name : AT1700.SYS
File Size: 13264 byte(s) 12.976 KB
MD5 : b23b756150925cd1a102dbf0a60a2d1c
SHA1: 7475098E8D4BE1FB53903895036DE8B492528D1C

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