Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

1.2.7 10.00%
1.2.5 10.00%
1.2.5 20.00%
1.2.5 10.00%
1.2.3 20.00%
1.2.3 30.00%

Relationships

PE structurePE file structure
Show functions
Import table
kernel32.dll
GetLastError, HeapFree, HeapAlloc, GetCurrentThreadId, GetCommandLineA, GetVersionExA, GetProcessHeap, WriteFile, WideCharToMultiByte, GetConsoleCP, GetConsoleMode, TerminateProcess, GetCurrentProcess, UnhandledExceptionFilter, SetUnhandledExceptionFilter, IsDebuggerPresent, EnterCriticalSection, LeaveCriticalSection, MultiByteToWideChar, ReadFile, GetModuleHandleA, GetProcAddress, TlsGetValue, TlsAlloc, TlsSetValue, TlsFree, InterlockedIncrement, SetLastError, InterlockedDecrement, CloseHandle, HeapDestroy, HeapCreate, VirtualFree, DeleteCriticalSection, VirtualAlloc, HeapReAlloc, FlushFileBuffers, SetFilePointer, SetHandleCount, GetStdHandle, GetFileType, GetStartupInfoA, ExitProcess, GetModuleFileNameA, Sleep, RtlUnwind, FreeEnvironmentStringsA, GetEnvironmentStrings, FreeEnvironmentStringsW, GetEnvironmentStringsW, QueryPerformanceCounter, GetTickCount, GetCurrentProcessId, GetSystemTimeAsFileTime, WriteConsoleA, GetConsoleOutputCP, WriteConsoleW, SetStdHandle, GetCPInfo, GetACP, GetOEMCP, IsValidCodePage, InitializeCriticalSection, LoadLibraryA, CreateFileA, GetLocaleInfoA, GetStringTypeA, GetStringTypeW, LCMapStringA, LCMapStringW, HeapSize, SetEndOfFile, DisableThreadLibraryCalls, FreeLibrary, VirtualProtect, VirtualQuery, InterlockedCompareExchange, InterlockedExchange
msvcr90.dll
DllMain
msvcrt.dll
DllMain
Export table
adler32
adler32_combine
adler32_combine64
compress
compress2
compressBound
crc32
crc32_combine
crc32_combine64
deflate
deflateBound
deflateCopy
deflateEnd
deflateInit_
deflateInit2_
deflateParams
deflatePending
deflatePrime
deflateReset
deflateResetKeep
deflateSetDictionary
deflateSetHeader
deflateTune
get_crc_table
gzbuffer
gzclearerr
gzclose
gzclose_r
gzclose_w
gzdirect
gzdopen
gzeof
gzerror
gzflush
gzgetc
gzgetc_
gzgets
gzoffset
gzoffset64
gzopen
gzopen_w
gzopen64
gzprintf
gzputc
gzputs
gzread
gzrewind
gzseek
gzseek64
gzsetparams
gztell
gztell64
gzungetc
gzwrite
inflate
inflateBack
inflateBackEnd
inflateBackInit_
inflateCopy
inflateEnd
inflateGetHeader
inflateInit_
inflateInit2_
inflateMark
inflatePrime
inflateReset
inflateReset2
inflateResetKeep
inflateSetDictionary
inflateSync
inflateSyncPoint
inflateUndermine
uncompress
zError
zlibCompileFlags
zlibVersion

zlib1.dll

zlib by Amazon Services LLC (Signed)

Remove zlib1.dll
Version:   1.2.3
MD5:   8300c329344da7cc6d87a338f86fc024
SHA1:   7144b28c4fe545fc9f52f3a5a27c2f97fd1cfdcd
SHA256:   bfafcfecd1982feb02234fc86b6a5ebabbeb926cbd64aa0f523953e02f30abc9

What is zlib1.dll?

zlib is a common software library used for data compression. zlib compressed data is typically written with a gzip or a zlib wrapper. zlib is something of a de facto standard, to the point that zlib and DEFLATE are often used interchangeably in standards documents, with thousands of applications relying on it for compression, either directly or indirectly.

Overview

zlib1.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 Glesius-Crew Script published by Glesius & Steldani, Marvell MRU V4 from Marvell and Marvell MRU V4 by Marvell. The file is digitally signed by Amazon Services LLC which was issued by the VeriSign certificate authority (CA).

DetailsDetails

File name:zlib1.dll
Product name:zlib
Description:zlib data compression library
Typical file path:C:\users\user\appdata\local\amazon\kindle\application\zlib1.dll
File version:1.2.3
Size:72.05 KB (73,782 bytes)
Certificate
Issued to:Amazon Services LLC
Authority (CA):VeriSign
Effective date:Monday, March 19, 2012
Expiration date:Friday, March 21, 2014
Digital DNA
PE subsystem:Windows GUI
File packed:No
Code language:Microsoft Visual C++
.NET CLR:No
More details

ResourcesPrograms

The following programs will install this file
Apache HTTP Server
 Apache Software Foundation
8% remove
“The Apache HTTP Server Project is a collaborative software development effort aimed at creating a robust, commercial-grade, featureful, and freely-available source code implementation of an HTTP (Web) server. The project is jointly managed by a group of volunteers located around the world, using the Internet and the Web to communicate, plan, and develop the server and its related documentation. This project is part of the Apache Softwar...”
Glesius-Crew Script
 Glesius & Steldani
4% remove
Marvell MRU
 Marvell
8% remove
The MSR is the Marvell controller drivers, the ones you want installed, not the main "disk drivers" only package, it does not have an interface.
Tail for Win32
 Siemens
1% remove

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 40.00%
Microsoft Windows XP 20.00%
Windows 7 Ultimate 20.00%
Windows Vista Home Basic 10.00%
Windows 7 Professional 10.00%

Distribution by countryDistribution by country

United States installs about 40.00% of zlib.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
GIGABYTE 33.33%
Dell 22.22%
Toshiba 22.22%
Acer 11.11%
Hewlett-Packard 11.11%
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