Should I block it?
No, this file is 100% safe to run.
Additional versions
(Note, Acer Incorporated publishes each variation of this file with the same version, but the hashes are unique.)
Relationships
 PE file structure
|
Show functions |
Import table
kernel32.dll
AddAtomA, FindAtomA, GetAtomNameA
msvcrt.dll
DllMain
Export table
_dist_code
_length_code
_tr_align
_tr_flush_block
_tr_init
_tr_stored_block
_tr_tally
adler32
adler32_combine
compress
compress2
compressBound
crc32
crc32_combine
deflate
deflate_copyright
deflateBound
deflateCopy
deflateEnd
deflateInit_
deflateInit2_
deflateParams
deflatePrime
deflateReset
deflateSetDictionary
deflateSetHeader
deflateTune
DllGetVersion
get_crc_table
gzclearerr
gzclose
gzdirect
gzdopen
gzeof
gzerror
gzflush
gzgetc
gzgets
gzopen
gzprintf
gzputc
gzputs
gzread
gzrewind
gzseek
gzsetparams
gztell
gzungetc
gzwrite
inflate
inflate_copyright
inflate_fast
inflate_table
inflateBack
inflateBackEnd
inflateBackInit_
inflateCopy
inflateEnd
inflateGetHeader
inflateInit_
inflateInit2_
inflatePrime
inflateReset
inflateSetDictionary
inflateSync
inflateSyncPoint
uncompress
z_errmsg
zcalloc
zcfree
zError
zlibCompileFlags
zlibVersion
zlib1.dll
Zlib by Acer Incorporated (Signed)
| Version: | 1.2.3.2027 |
| MD5: | f81889b66486a2e28a142dba84d7ff08 |
| SHA1: | b8a03f2f9e136fe691024a8e907978fa27b7979b |
What is zlib1.dll?
zlib (zlib data compression library) 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 AcerCloud Portal published by Acer Incorporated. The file is digitally signed by Acer Incorporated which was issued by the VeriSign certificate authority (CA).
Details
| File name: | zlib1.dll |
| Publisher: | Zlib |
| Product name: | Zlib |
| Description: | Zlib: general purpose data compression / decompression library |
| Typical file path: | C:\Program Files\hotspot shield\bin\zlib1.dll |
| File version: | 1.2.3.2027 |
| Size: | 80.57 KB (82,504 bytes) |
| Build date: | 7/20/2005 6:05 PM |
| Certificate |
| Issued to: | Acer Incorporated |
| Authority (CA): | VeriSign |
| Expiration date: | Friday, September 13, 2013 |
| Digital DNA |
| PE subsystem: | Windows Console |
| File packed: | No |
| Code language: | Microsoft Visual C++ |
| .NET CLR: | No |
More details
Programs
The following program will install this file
“With AcerCloud you can use all your content, anywhere, all the time on every device. So download your favorite music at home and listen to it on your phone. Get inspired on the go and work with it at the office. Prepare your presentation on your desktop and blow your clients away from your tablet. Download your movies at home and finish watching it on the go. Manage all your photos taken from your Android devices or imported from your d...”
Distribution by Windows OS
| OS version | distribution |
| Windows 7 Ultimate |
33.71% |
|
| Windows 7 Home Premium |
15.73% |
|
| Microsoft Windows XP |
14.61% |
|
| Windows 8 Pro |
8.99% |
|
| Windows 7 Professional |
6.74% |
|
| Windows Vista Home Premium |
3.37% |
|
| Windows 8 |
3.37% |
|
| Windows 7 Home Basic |
3.37% |
|
| Windows 8 Pro with Media Center |
2.25% |
|
| Windows 8 Enterprise |
2.25% |
|
| Windows 7 Ultimate N |
2.25% |
|
| Windows 8 Single Language |
1.12% |
|
| Windows 8 Enterprise N |
1.12% |
|
| Windows Vista Home Basic |
1.12% |
|
Distribution by country
United States installs about 24.71% of Zlib.
Distribution by PC manufacturer
| PC Manufacturer | distribution |
| Toshiba |
20.90% |
|
| Hewlett-Packard |
19.40% |
|
| Dell |
14.93% |
|
| Lenovo |
11.94% |
|
| ASUS |
11.94% |
|
| Acer |
8.96% |
|
| Intel |
5.97% |
|
| American Megatrends |
2.99% |
|
| Gateway |
2.99% |
|
