TCP/IP Registry Compatibility (tcpipreg) Service Defaults in Windows 10

Provides compatibility for legacy applications which interact with TCP/IP through the registry. If this service is stopped, certain applications may have impaired functionality.

Default Settings

Startup type: Automatic
Display name:TCP/IP Registry Compatibility
Service name:tcpipreg
Service type:kernel
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\tcpipreg

Default Behavior

TCP/IP Registry Compatibility is a kernel device driver. In Windows 10 it is starting automatically when the operating system starts. If TCP/IP Registry Compatibility fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the tcpipreg service has failed to start due to the error.


TCP/IP Registry Compatibility cannot be started under any conditions, if the TCP/IP Protocol Driver service is disabled.

Restore Default Startup Configuration of TCP/IP Registry Compatibility

Before you begin doing this, make sure that all the services on which TCP/IP Registry Compatibility depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

2. Copy the commands below, paste them into the command window and press ENTER:

sc config tcpipreg start= auto
sc start tcpipreg

3. Close the command window and restart the computer.

The tcpipreg service is using the tcpipreg.sys file that is located in the C:\Windows\System32\drivers directory. If the file is removed or corrupted, read this article to restore its original version from Windows 10 installation media.