Telnet

 

Windows 8

Default Description

Enables a remote user to log on to this computer and run programs, and supports various TCP/IP Telnet clients, including UNIX-based and Windows-based computers. If this service is stopped, remote user access to programs might be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

This service is not installed by default and should not be installed on a “home” system. You can add or remove this service by heading to:

  1. Head to Start
  2. Select Control Panel
  3. Select Programs
  4. Select Programs and Features
  5. Select Turn Windows Features on or off

Default Startup Type

OS SP0
Windows 8 x86 Not Installed (Disabled)
Windows 8 x64 Not Installed (Disabled)
Windows 8 Pro x86 Not Installed (Disabled)
Windows 8 Pro x64 Not Installed (Disabled)
Windows 8 Enterprise x86 Not Installed (Disabled)
Windows 8 Enterprise x64 Not Installed (Disabled)

Service Names

Service Name (registry): TlntSvr
Display Name: Telnet

Default Path and Command Line Options

C:\Windows\System32\tlntsvr.exe

Log On As

Account: Local Service

Dependencies

Note: No dependencies are listed for any service in the WDP build I used to draft this information.

Windows 7

Default Description

Enables a remote user to log on to this computer and run programs, and supports various TCP/IP Telnet clients, including UNIX-based and Windows-based computers. If this service is stopped, remote user access to programs might be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

Telnet service is not secure. This service should remain uninstalled on a home system.

This service is not installed by default. You can add or remove this service by heading to:

  1. Head to Start
  2. Select Control Panel
  3. Select Programs
  4. Select Programs and Features
  5. Select Turn Windows Features on or off

Default Startup Type

OS SP0 SP1
Windows 7 Starter Not Installed (Disabled) Not Installed (Disabled)
Windows 7 Home Basic Not Installed (Disabled) Not Installed (Disabled)
Windows 7 Home Premium Not Installed (Disabled) Not Installed (Disabled)
Windows 7 Professional Not Installed (Disabled) Not Installed (Disabled)
Windows 7 Ultimate Not Installed (Disabled) Not Installed (Disabled)
Windows 7 Enterprise Not Installed (Disabled) Not Installed (Disabled)

Service Names

Service Name (registry): TlntSvr
Display Name: Telnet

Default Path and Command Line Options

C:\Windows\System32\tlntsvr.exe

Log On As

Account: Local Service

Dependencies

What service Telnet needs to function properly:

What other service require Telnet to function properly:

  • None (S, HB, HP, P, U, E)

Windows Vista

Default Description

Enables a remote user to log on to this computer and run programs, and supports various TCP/IP Telnet clients, including UNIX-based and Windows-based computers. If this service is stopped, remote user access to programs might be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

Not installed by default, but if needed, you may install it later off the Windows Vista CD/DVD under Control Panel > Programs > Programs and Features > Turn Windows features on or off > Check “Telnet Server”.

This service, even after installation, defaults to Disabled (which is not a bad thing).

Default Startup Type

OS SP0 SP1 SP2
Vista Home Basic Not Installed (Disabled) Not Installed (Disabled) Not Installed (Disabled)
Vista Home Premium Not Installed (Disabled) Not Installed (Disabled) Not Installed (Disabled)
Vista Business Not Installed (Disabled) Not Installed (Disabled) Not Installed (Disabled)
Vista Ultimate Not Installed (Disabled) Not Installed (Disabled) Not Installed (Disabled)
Vista Enterprise Not Installed (Disabled) Not Installed (Disabled) Not Installed (Disabled)

Service Names

Service Name (registry): TlntSvr
Display Name: Telnet

Default Path and Command Line Options

C:\Windows\system32\tlntsvr.exe

Log On As

Account: Local Service

Dependencies

What service Telnet needs to function properly:

What other service require Telnet to function properly:

  • None (HB, HP, B, U)

Windows XP Pro x64

Default Description

Enables a remote user to log on to this computer and run programs, and supports various TCP/IP Telnet clients, including UNIX-based and Windows-based computers. If this service is stopped, remote user access to programs might be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

It allows remote login to the local computer via the telnet function. For security reasons, disable this unless you specifically require its functionality.

Default Startup Type

OS SP0 SP1 SP2
XP Pro x64 ? ? Manual

Service Names

Service Name (registry): TlntSvr
Display Name: Telnet

Default Path and Command Line Options

C:\WINDOWS\System32\svchost.exe -k netsvcs

Log On As

Account: Local System Account

Dependencies

What service Telnet needs to function properly:

What other service require Telnet to function properly:

  • None

Windows XP

Default Description

Enables a remote user to log on to this computer and run programs, and supports various TCP/IP Telnet clients, including UNIX-based and Windows-based computers. If this service is stopped, remote user access to programs might be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

This service is not available on Windows XP Home. It allows remote login to the local computer via the telnet function. For security reasons, disable this unless you specifically require its functionality. You will save about 2 MB of RAM by plugging this security hole. After the installation of Service Pack 2 or 3, this service is disabled by default.

Default Startup Type

OS SP0 SP1 SP2 SP3
XP Home Not Available Not Available Not Available Not Available
XP MCE 2005 ? ? Disabled Disabled
XP Pro ? ? Disabled Disabled
XP Tablet PC 2005 ? ? Disabled Disabled

Service Names

Service Name (registry): TlntSvr
Display Name: Telnet

Default Path and Command Line Options

C:\WINDOWS\System32\svchost.exe -k netsvcs

Log On As

Account: Local System Account

Dependencies

What service Telnet needs to function properly:

What other service require Telnet to function properly:

  • None (M, P, T)

Additional Reading

None at this time.