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File Version : 1, 4, 1, 0
Description : High-Speed USB MultiSerial Adapter Driver
Copyright :
Product Version : 1, 4, 1, 0
Product Name : High-Speed USB MultiSerial Device
Company Name :
Internal Name : mos24ser.sys
File Size: 615040 byte(s) 600.640 KB
MD5 : 9cbb768a1618863a8d1807d7aa5e874d
SHA1: 1A7C6B5E31E1E5876854CAA00E0E04E460D7E4F5

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