Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

2.18.0.945 12.00%
2.17.0.898 4.00%
2.16.0.809 12.00%
2.15.0.742 8.00%
2.15.0.741 4.00%
2.14.0.706 6.00%
2.13.0.670 10.00%
2.12.0.628 28.00%
2.11.0.560 6.00%
2.11.0.560 4.00%
2.10.0.424 2.00%
2.8.0.373 2.00%
2.6.0.328 2.00%

Relationships

defragglershell64.dll

DefragglerShell by Piriform Ltd (Signed)

Remove defragglershell64.dll
Version:   2.15.0.742
MD5:   67066f40dcd9ce5a5ed2d7e37dd544c2
SHA1:   e98b7558487eae4ac9f7648d1dc1090bba519407
SHA256:   464df1f40946e081ac1d91c0b1df288b054cf09b3b2a247336996940065780c6

About defragglershell64.dll (from Piriform Ltd)

Defraggler allow you to perform defragmentation of files on your hard disk. Defragmentation of your hard drive can significantly improve the performance of your computer. With this tool you can defrag

Overview

defragglershell64.dll is loaded as dynamic link library that runs in the context of a process. It is installed with a couple of know programs including Defraggler published by Piriform, Defraggler from Piriform and Defraggler by Piriform. The assembly utilizes the .NET run-time framework (which is required to be installed on the PC). The file is digitally signed by Piriform Ltd which was issued by the VeriSign certificate authority (CA).

DetailsDetails

File name:defragglershell64.dll
Publisher:Piriform Ltd
Product name:DefragglerShell
Typical file path:C:\Program Files\defraggler\defragglershell64.dll
Original name:DefragglerShell.DLL
File version:2.15.0.742
Size:103.77 KB (106,264 bytes)
Build date:8/20/2013 5:53 AM
Certificate
Issued to:Piriform Ltd
Authority (CA):VeriSign
Effective date:Tuesday, July 5, 2011
Expiration date:Thursday, August 22, 2013
Digital DNA
File packed:No
Code language:Microsoft Visual C# / Basic .NET
.NET CLR:Yes
.NET NGENed:No
More details

ResourcesPrograms

The following programs will install this file
Piriform
5% remove
Defraggler is a defragmentation utility which allows users to defragment individual files on their computer system. Defraggler can defragment individual files, groups of files (in a folder) or an entire disk partition, either by the user's command or automatically on a schedule. It supports FAT32, NTFS, and exFAT.
Piriform
3% remove
CCleaner developed by Piriform, is a utility program used to clean potentially unwanted files and invalid Windows Registry entries from a computer. CCleaner supports the cleaning of temporary or potentially unwanted files left by certain programs along with browsing history, cookies, recycle bin, memory dumps, file fragments, log files, system caches, application data, autocomplete form history, and various other data. The program also ...
Piriform
11% remove
Speccy is a tool that allows the user to see information about hardware and software of the computer. The information displayed by Speccy including processor brand and model, hard drive size and speed, amount of memory (RAM), information about graphics card and operating system and other things. Speccy is for seeing what kind of hardware you are using and how it's being used.
Skype Technologies S.A.
7% remove
Skype is a proprietary Voice over IP service and software application. The service allows users to communicate with peers by voice using a microphone, video by using a webcam, and instant messaging over the Internet. Phone calls may be placed to recipients on the traditional telephone networks. Calls to other users within the Skype service are free of charge, while calls to landline telephones and mobile phones are charged via a debit-b...

BehaviorsBehaviors

Context menu handlers
Located in '*\shellex\ContextMenuHandlers'
  • Name: 'DefragglerShellExtension'
Approved shell extensions
Located in the registry at 'SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved'
  • 'DefragglerShellExtension' with CLSID {4380C993-0C43-4E02-9A7A-0D40B6EA7590}

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 46.00%
Windows 7 Professional 14.00%
Windows 7 Ultimate 14.00%
Windows 8 Pro 8.00%
Windows 8.1 6.00%
Windows 8.1 Pro 6.00%
Windows 8 2.00%
Windows 7 Enterprise 2.00%
Windows 8 Enterprise 2.00%

Distribution by countryDistribution by country

United States installs about 62.00% of DefragglerShell.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Toshiba 17.54%
Acer 17.54%
Hewlett-Packard 15.79%
Sony 14.04%
Dell 14.04%
ASUS 7.02%
Lenovo 7.02%
GIGABYTE 3.51%
Intel 3.51%
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