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File Version : 1.1.658.0
Description : Virtual Machine Monitor
Copyright : Microsoft Corporation. All rights reserved.
Product Version : 1.1.658.0 EE R2 SP1
Product Name : Microsoft Virtual Server 2005 R2 SP1
Company Name : Microsoft Corporation
Internal Name : vmm.sys
File Size: 230248 byte(s) 224.872 KB
MD5 : c01604eaea9c89035cff58cdb322476c
SHA1: 99A3A63F3FC8507FE9474F1EC9B0F05ACA6E6E17

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