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:   1.2.5
MD5:   1ca86b3593df6097e3aa2bea9acf5d62
SHA1:   5c8740a571d52803a565ba042380babc64343299
SHA256:   8c6c221cfbe19365666575c235bc36358137a4c58474ba7580e0221100c5d127

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. This is typically installed with the program Amazon Kindle published by Amazon Services LLC. 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:1.2.5
Size:92.49 KB (94,712 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 program will install this file
Amazon Kindle
 Amazon Services LLC
4% remove
“Read more than 1 million Kindle books on your PC with our free Kindle reading app. No Kindle device required. Our Whispersync technology syncs your last page read, bookmarks, notes, and highlights across various devices. Our Whispersync technology automatically syncs your books across apps, so you can start reading on one device with the Kindle app installed, and pick up where you left off on another device with the Kindle app installed...”

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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