Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

1.3.0 8.18%
1.2.5 15.67%
1.2.5 17.61%
1.2.5 18.31%
1.2.5 28.71%
1.2.5 9.29%
1.2.3 0.83%
1.2.3 0.55%
1.2.3 0.55%
1.2.3 0.28%

Relationships


PE structurePE file structure

Show functions
Import table
kernel32.dll
GetCurrentProcessId, GetCurrentThreadId, GetTickCount, QueryPerformanceCounter, DisableThreadLibraryCalls, IsDebuggerPresent, SetUnhandledExceptionFilter, UnhandledExceptionFilter, GetCurrentProcess, TerminateProcess, InterlockedCompareExchange, Sleep, InterlockedExchange, GetSystemTimeAsFileTime
msvcr80.dll
DllMain
Export table
adler32
adler32_combine
compress
compress2
compressBound
crc32
crc32_combine
deflate
deflateBound
deflateCopy
deflateEnd
deflateInit_
deflateInit2_
deflateParams
deflatePrime
deflateReset
deflateSetDictionary
deflateSetHeader
deflateTune
get_crc_table
gzbuffer
gzclearerr
gzclose
gzclose_r
gzclose_w
gzdirect
gzdopen
gzeof
gzerror
gzflush
gzgetc
gzgets
gzoffset
gzopen
gzprintf
gzputc
gzputs
gzread
gzrewind
gzseek
gzsetparams
gztell
gzungetc
gzwrite
inflate
inflateBack
inflateBackEnd
inflateBackInit_
inflateCopy
inflateEnd
inflateGetHeader
inflateInit_
inflateInit2_
inflateMark
inflatePrime
inflateReset
inflateReset2
inflateSetDictionary
inflateSync
inflateSyncPoint
inflateUndermine
uncompress
zError
zlibCompileFlags
zlibVersion

zlib1.dll

zlib by Apple Inc. (Signed)

Remove zlib1.dll
Version:   1.2.3
MD5:   85d2a186afd93a318935791421efc605
SHA1:   9a4d5e23bc32798d36a039f7c2094a0c6e9bc584
SHA256:   f3f4b90248183ea2ec4eb22e45e213dc3babaa432a772ec148d86a7a8da5d9b8

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 Apple Application Support published by Apple Inc., Apple Application Support from Apple Inc. and Apple Application Support by Apple Inc.. The file is digitally signed by Apple Inc. 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:\Program Files\common files\apple\apple application support\zlib1.dll
File version:1.2.3
Size:66.28 KB (67,872 bytes)
Certificate
Issued to:Apple Inc.
Authority (CA):VeriSign
Effective date:Sunday, May 17, 2009
Expiration date:Sunday, June 26, 2011
Digital DNA
PE subsystem:Windows GUI
Entropy:6.785203
File packed:No
Code language:Microsoft Visual C++ 8.0
.NET CLR:No
More details

ResourcesPrograms

The following programs will install this file
Apple Inc.
6% remove
Apple Application Support is required to run iTunes, QuickTime and other Apple installed products (do not remove this if you use any of these programs). If you remove this program you will need to reinstall it in order for iTunes to load. The program is also used to connect iTunes to the various iOS devices such as the iPhone, iPad and iPod Touch.

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 44.50%
Windows 7 Ultimate 11.50%
Windows 8.1 11.50%
Windows 7 Professional 6.00%
Windows 8.1 Pro 5.50%
Microsoft Windows XP 5.50%
Windows 8 5.00%
Windows Vista Home Premium 2.50%
Windows 8 Pro 2.00%
Windows 8.1 Single Language 1.50%
Windows 8 Single Language 1.50%
Windows Seven Black Edition 1.00%
Windows 8.1 N 0.50%
Windows 8 Enterprise 0.50%
Windows 8.1 Pro with Media Center 0.50%
Windows Vista Home Basic 0.50%

Distribution by countryDistribution by country

United States installs about 50.75% of zlib.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 20.23%
Hewlett-Packard 18.68%
Toshiba 13.23%
ASUS 11.67%
Acer 9.34%
Lenovo 7.78%
Sony 7.78%
GIGABYTE 3.11%
Intel 2.33%
NEC 1.56%
Samsung 1.17%
Alienware 0.78%
Sahara 0.78%
American Megatrends 0.78%
Compaq 0.78%
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