DNS Client - Windows 7 Service
The DNS Client service (dnscache) caches Domain Name System (DNS) names and registers the full computer name for your computer. If the service is stopped, DNS names will continue to be resolved. However, the results of DNS name queries will not be cached and the computer's name will not be registered. If the service is disabled, any services that explicitly depend on it will fail to start.
This service also exists in Windows 10, 11, 8, Vista and XP.
Startup Type
| Windows 7 edition | without SP | SP1 |
|---|---|---|
| Starter | Automatic | Automatic |
| Home Basic | Automatic | Automatic |
| Home Premium | Automatic | Automatic |
| Professional | Automatic | Automatic |
| Ultimate | Automatic | Automatic |
| Enterprise | Automatic | Automatic |
Default Properties
| Display name: | DNS Client |
| Service name: | Dnscache |
| Type: | share |
| Path: | %WinDir%\system32\svchost.exe -k NetworkService |
| File: | %WinDir%\System32\dnsrslvr.dll |
| Error control: | normal |
| Group: | TDI |
| Object: | NT AUTHORITY\NetworkService |
| Privileges: |
|
Default Behavior
The DNS Client service runs as NT AUTHORITY\NetworkService in a shared process. It shares the executable file with other services. If the DNS Client fails to load or initialize, the error is recorded into the Event Log. Windows 7 startup should proceed, but a message box is displayed informing you that the Dnscache service has failed to start.
Dependencies
DNS Client will not start, if the following services are stopped or disabled:
Restore Default Startup Type of DNS Client
Automated Restore
1. Select your Windows 7 edition and Service Pack, and then click on the Download button below.
2. Save the RestoreDNSClientWindows7.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 dnsrslvr.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 7 installation media.