Should I block it?

No, this file is 100% safe to run.

PE structurePE file structure

Show functions
Import table
advapi32.dll
LookupPrivilegeValueA, OpenProcessToken, RegCloseKey, RegQueryValueExW, RegCreateKeyExW, AdjustTokenPrivileges
kernel32.dll
FormatMessageW, Sleep, GetLastError, CreateFileW, DeviceIoControl, GetFileInformationByHandle, CloseHandle, FlushFileBuffers, FindClose, FindNextFileW, FindFirstFileW, SystemTimeToFileTime, GetSystemTime, GetFileAttributesExW, GetSystemTimeAsFileTime, GetDiskFreeSpaceExW, GetVolumeNameForVolumeMountPointW, GetVolumePathNameW, GetCurrentProcess, FindVolumeMountPointClose, FindNextVolumeMountPointW, FindFirstVolumeMountPointW, GetVolumeInformationW, GetDriveTypeW, GetLogicalDriveStringsW, ReadFile, LocalFileTimeToFileTime, DosDateTimeToFileTime, HeapReAlloc, HeapAlloc, GetTimeZoneInformation, HeapFree, GetCurrentThreadId, GetCommandLineA, GetCPInfo, InterlockedIncrement, InterlockedDecrement, GetACP, GetOEMCP, IsValidCodePage, GetModuleHandleW, GetProcAddress, TlsGetValue, TlsAlloc, TlsSetValue, TlsFree, SetLastError, TerminateProcess, UnhandledExceptionFilter, SetUnhandledExceptionFilter, IsDebuggerPresent, DeleteCriticalSection, LeaveCriticalSection, EnterCriticalSection, HeapCreate, HeapDestroy, VirtualFree, VirtualAlloc, ExitProcess, WriteFile, GetStdHandle, GetModuleFileNameA, WideCharToMultiByte, GetModuleHandleA, MultiByteToWideChar, RtlUnwind, SetHandleCount, GetFileType, GetStartupInfoA, FreeEnvironmentStringsA, GetEnvironmentStrings, FreeEnvironmentStringsW, GetEnvironmentStringsW, QueryPerformanceCounter, GetTickCount, GetCurrentProcessId, LCMapStringA, LCMapStringW, GetStringTypeA, GetStringTypeW, GetLocaleInfoA, SetFilePointer, GetConsoleCP, GetConsoleMode, InitializeCriticalSectionAndSpinCount, LoadLibraryA, SetStdHandle, WriteConsoleA, GetConsoleOutputCP, WriteConsoleW, HeapSize, SetEndOfFile, GetProcessHeap, CreateFileA, CompareStringA, CompareStringW, SetEnvironmentVariableA
Export table
AddArrayString
CallShowStatus
ColorizeItem
DeleteItemTree
FragmentCount
GetItemLcn
GetLongPath
GetShortPath
IsFragmented
MatchMask
RunJkDefrag
ShowDiskmap
ShowHex
SlowDown
StopJkDefrag
stristr
stristrW
SystemErrorStr
TreeBiggest
TreeDetach
TreeFirst
TreeInsert
TreeNext
TreeNextPrev
TreePrev
TreeSmallest

jkdefraglib.dll

JkDefrag by Ltd. SmartTweak Software (Signed)

Remove jkdefraglib.dll
Version:   3.36
MD5:   84b7926337bb9d168bc49a55b94eebbc
SHA1:   2139b4a9763320b4db9f0a1c786960f514e4ca79
SHA256:   d6132c3d72248271f6eab1bc8e4b8fdf433cfd6576cd264becf1f6633655c1c8

Overview

jkdefraglib.dll is loaded as dynamic link library that runs in the context of a process. This is typically installed with the program DefragMyDrives published by SmartTweak Software. The file is digitally signed by Ltd. SmartTweak Software which was issued by the Thawte Consulting (Pty) Ltd. certificate authority (CA). This particular version is usually found on Windows 7 Ultimate (6.1.7600.0).

DetailsDetails

File name:jkdefraglib.dll
Publisher:J.C. Kessels
Product name:JkDefrag
Description:JkDefrag - disk defragmentation and optimization tool
Typical file path:C:\Program Files\smarttweak software\defragmydrives\jkdefraglib.dll
Original name:JkDefrag.exe
File version:3.36
Size:198.88 KB (203,656 bytes)
Build date:8/31/2008 5:17 PM
Certificate
Issued to:Ltd. SmartTweak Software
Authority (CA):Thawte Consulting (Pty) Ltd.
Effective date:Saturday, June 5, 2010
Expiration date:Tuesday, July 5, 2011
Digital DNA
PE subsystem:Windows GUI
File packed:No
.NET CLR:No
More details

ResourcesPrograms

The following program will install this file
SmartTweak Software
26% remove

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Ultimate 100.00%

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Acer 100.00%
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