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File Version :
Description : Windows 98 USB to Serial converter
Copyright : Copyright(c) American Power Conversion. 2000
Product Version :
Product Name : APC USB to Serial Adapter
Company Name : APC
Internal Name : APCSERE
File Size: 40568 byte(s) 39.632 KB
MD5 : fc47457c67b5fc0b9244f79a2e9a928e
SHA1: 5033FCE12B5CD6227B967F7D81F9DBBCCB92E090

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