sysmain.dll
Superfetch Service Host by Microsoft
This is a Windows system installed file with Windows File Protection (WFP) enabled.
Overview
sysmain.dll has 25 known versions, the most recent one is 6.3.9600.16384 (winblue_rtm.130821-1623). During installation the program adds a job to the Task Scheduler. The average file size is about 1.1 MB.
What is sysmain.dll?
SuperFetch is a technology that pre-loads commonly used applications into memory to reduce their load times. SuperFetch attempts to load commonly used libraries and application components into memory before they are required. It does so by continually analyzing application behavior and usage patterns.
Details |
File name: | sysmain.dll |
Publisher: | Microsoft Corporation |
Product name: | Superfetch Service Host |
Description: | Microsoft® Windows® Operating System |
Typical file path: | C:\Windows\System32\sysmain.dll |
Original name: | sysmain.dll.mui |
Behaviors
(Note, the behaviors below are for all versions of sysmain.dll, select a unique version for details.)
Autoplay handlers
Runs under the registry key 'SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AutoplayHandlers\Handlers'
- Handler name 'MSCreateRdbCache'
Hosted services
Runs as a shared service under the Windows svcHost
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
- Shared name is 'SysMain'
Scheduled tasks
- The task 'WsSwapAssessmentTask' runs in the path '\Microsoft\Windows\Sysmain\WsSwapAssessmentTask'
- Entry path '\Microsoft\Windows\Sysmain\WsSwapAssessmentTask'
All file variations of sysmain.dll
Distribution by Windows OS
OS version | distribution |
Windows 7 Home Premium |
40.50% |
|
Windows 8.1 |
17.25% |
|
Windows 7 Ultimate |
16.25% |
|
Windows 8.1 Pro |
7.75% |
|
Windows 7 Professional |
6.50% |
|
Windows 8.1 Single Language |
3.25% |
|
Windows 8.1 Pro with Media Center |
2.00% |
|
Windows 7 Home Basic |
1.50% |
|
Windows Vista Home Premium |
1.00% |
|
Windows 8 Enterprise N |
0.75% |
|
Windows 8 Single Language |
0.75% |
|
Windows 8.1 N |
0.50% |
|
Windows Seven Black Edition |
0.50% |
|
Windows 8.1 Enterprise Evaluation |
0.50% |
|
Windows 7 Starter |
0.25% |
|
Windows 8.1 Enterprise |
0.25% |
|
Windows 8.1 Pro Preview |
0.25% |
|
Windows Vista Home Basic |
0.25% |
|
Distribution by country
United States installs about 48.24% of Superfetch Service Host.
Distribution by PC manufacturer
PC Manufacturer | distribution |
Dell |
21.09% |
|
ASUS |
19.92% |
|
Hewlett-Packard |
18.16% |
|
Acer |
12.50% |
|
Toshiba |
10.16% |
|
Lenovo |
6.25% |
|
Sony |
5.08% |
|
GIGABYTE |
1.56% |
|
Alienware |
1.37% |
|
Samsung |
1.17% |
|
Intel |
1.17% |
|
Medion |
1.17% |
|
Sahara |
0.39% |
|