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File Version :
Description : Mouse Class Driver
Copyright : Copyright (C) ALPS Electric Co., Ltd. 1997-1998
Product Version :
Product Name : AlpsPoint NT Pointing-device driver
Company Name : ALPS Electric Co., Ltd.
Internal Name : ApntCls.sys
File Size: 11136 byte(s) 10.896 KB
MD5 : bf7ee706a162ffed758e1a93f8f307bb
SHA1: E5AB5E37AE7BC21B9F7A33736608CD2434426CD9

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