Should I block it?

No, this file is 100% safe to run.

Additional versions

6.1.7601.17777 (win7sp1_gdr.120210-1503)	82.76%
6.1.7601.17514 (win7sp1_rtm.101119-1850)	4.31%
6.1.7600.16962 (win7_gdr.120210-1506)	3.45%
6.1.7600.16385 (win7_rtm.090713-1255)	1.72%
6.0.6001.18000 (longhorn_rtm.080118-1840)	7.76%

Relationships

winword.exe (2007 Microsoft Office system by Microsoft Corporation)

splwow64.exe

Print driver host for 32bit applications by Microsoft

Remove splwow64.exe

Version:	6.0.6001.18000 (longhorn_rtm.080118-1840)
MD5:	3d85663db8a364b5a20ecd588cf4c870
SHA1:	32792054d072747db11be1ad81e31d60847c75b1
SHA256:	794b0525e8933ea47c985e9841cf60bd76c5338a81ebb4347179f36bd51bb3ee

This is a Windows system installed file with Windows File Protection (WFP) enabled.

Overview

splwow64.exe executes as a process with the local user's privileges typically within the context of its parent winword.exe (2007 Microsoft Office system by Microsoft Corporation). The assembly utilizes the .NET run-time framework (which is required to be installed on the PC). and is compiled as a 64 bit program.

Details

File name:	splwow64.exe
Publisher:	Microsoft Corporation
Product name:	Print driver host for 32bit applications
Description:	Microsoft® Windows® Operating System
Typical file path:	C:\windows\splwow64.exe
File version:	6.0.6001.18000 (longhorn_rtm.080118-1840)
Product version:	6.0.6001.18000
Size:	39 KB (39,936 bytes)
Digital DNA
File packed:	No
Code language:	Microsoft Visual C# / Basic .NET
.NET CLR:	Yes
.NET NGENed:	No

More details

Resource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)

Averages

CPU
Total CPU:	0.00028935%	0.028634%
Kernel CPU:	0.00015652%	0.013761%
User CPU:	0.00013283%	0.014873%
Kernel CPU time:	2,441 ms/min	100,923,805ms/min
CPU cycles:	71,674/sec	17,470,203/sec
Memory
Private memory:	3.89 MB	21.59 MB
Private (maximum):	7.98 MB
Private (minimum):	3.94 MB
Non-paged memory:	3.89 MB	21.59 MB
Virtual memory:	79.64 MB	140.96 MB
Virtual memory (peak):	92.93 MB	169.69 MB
Working set:	5.32 MB	18.61 MB
Working set (peak):	12.39 MB	37.95 MB
Page faults:	59,141/min	2,039/min
I/O
I/O read transfer:	796 Bytes/sec	1.02 MB/min
I/O read operations:	5/sec	343/min
I/O write transfer:	1.63 KB/sec	274.99 KB/min
I/O write operations:	1/sec	227/min
I/O other transfer:	43 Bytes/sec	448.09 KB/min
I/O other operations:	16/sec	1,671/min
Resource allocations
Threads:	4	12
Handles:	98	600
GUI GDI count:	7	103
GUI USER count:	3	49

Process properties

Integrety level:	Medium
Platform:	64-bit
Command line:	splwow64
Owner:	User
Parent processes:	winword.exe (2007 Microsoft Office system by Microsoft Corporation) chrome.exe (Google Chrome by Google Inc)

Threads

Averages

splwow64.exe (main module)
Total CPU:	0.00076419%	0.272967%
Kernel CPU:	0.00024435%	0.107585%
User CPU:	0.00051984%	0.165382%
CPU cycles:	16,667/sec	5,741,424/sec
Memory:	56 KB	1.16 MB
RPCRT4.dll
Total CPU:	0.00031786%
Kernel CPU:	0.00020435%
User CPU:	0.00011351%
CPU cycles:	6,648/sec
Memory:	1.26 MB

Distribution by Windows OS

OS version	distribution
Windows 7 Home Premium	67.29%
Windows 7 Ultimate	16.82%
Windows 7 Professional	14.02%
Windows 7 Home Basic	1.87%

Distribution by country

United States installs about 77.36% of Print driver host for 32bit applications.

Distribution by PC manufacturer

PC Manufacturer	distribution
Dell	28.26%
Hewlett-Packard	18.48%
Toshiba	17.39%
Acer	9.78%
ASUS	8.70%
Intel	6.52%
Sony	4.35%
Lenovo	2.17%
Samsung	2.17%
GIGABYTE	1.09%
Alienware	1.09%

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