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:
- Head to Start
- Select Control Panel
- Select Programs
- Select Programs and Features
- 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:
- Head to Start
- Select Control Panel
- Select Programs
- Select Programs and Features
- 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:
-
Remote Procedure Call (RPC)(S, HB, HP, P, U, E)
- DCOM Server Process Launcher (S, HB, HP, P, U, E)
- RPC Endpoint Mapper (S, HB, HP, P, U, E)
- Secondary Logon (S, HB, HP, P, U, E)
- TCP/IP Protocol Driver (S, HB, HP, P, U, E)
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:
-
Remote Procedure Call (RPC)(HB, HP, B, U)
- DCOM Server Process Launcher (HB, HP, B, U)
- TCP/IP Protocol Driver (HB, HP, B, U)
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:
- NT LM Security Support Provider
- Remote Procedure Call (RPC)
- TCP/IP Protocol Driver
- IPSEC driver
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:
- NT LM Security Support Provider (M, P, T)
- Remote Procedure Call (RPC) (M, P, T)
- TCP/IP Protocol Driver (M, P, T)
- IPSEC driver (M, P, T)
What other service require Telnet to function properly:
- None (M, P, T)
Additional Reading
None at this time.