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File Version : 5.1.3600.7
Description : SMSC IrCC NDIS 5.0 IrDA FIR Device Driver
Copyright : Copyright SMSC 1996-2004
Product Version : 5.1.3600.7
Product Name : Fast Infrared Miniport Driver
Company Name : SMSC
Internal Name : SMCIRDA.SYS
File Size: 46592 byte(s) 45.512 KB
MD5 : 62556d170f22c43a544481e4ee16d2e2
SHA1: F3C04DD27EE8039EF5D6352240592F2197853BF7

Download SN2.SYS
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How to Install SN2.SYS
Repair Sys ProblemsFixing a corrupted or missing SN2.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.