batcmd.com Windows Vista Services

Superfetch - Windows Vista Service

Maintains and improves system performance over time.

This service also exists in Windows 10, 7 and 8.

Startup Type

Windows Vista edition without SP SP1 SP2
Starter Automatic Automatic Automatic
Home Basic Automatic Automatic Automatic
Home Premium Automatic Automatic Automatic
Business Automatic Automatic Automatic
Ultimate Automatic Automatic Automatic

Default Properties

Display name:Superfetch
Service name:SysMain
Type:share
Path:%WinDir%\system32\svchost.exe -k LocalSystemNetworkRestricted
File:%WinDir%\system32\sysmain.dll
Error control:ignore
Object:LocalSystem
Privileges:
  • SeTcbPrivilege
  • SeProfileSingleProcessPrivilege
  • SeTakeOwnershipPrivilege
  • SeDebugPrivilege

Default Behavior

Superfetch logs on as LocalSystem and runs in a shared process of svchost.exe. If Superfetch fails to load or initialize, Windows Vista start up proceeds. No warning is displayed, but the error is recorded into the Event Log.

Dependencies

Superfetch won't start, if the following system components are stopped or disabled:

Restore Default Startup Type for Superfetch

Automated Restore

1. Select your Windows Vista edition and Service Pack, and then click on the Download button below.

2. Save the RestoreSuperfetchWindowsVista.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer to save changes.

Note. Make sure that the sysmain.dll file exists in the %WinDir%\system32 folder. If this file is missing you can try to restore it from your Windows Vista installation media.