The Telnet service is Disabled by default in your version of Windows anyhow!
The easiest way is to delete the service
sc delete tlntsvr
in the run box should do it!
The following are all the Telnet service dependencies:
"SystemRoot\system32\GDI32.DLL"
"SystemRoot\system32\KERNEL32.DLL"
"SystemRoot\system32\MSVCRT.DLL"
"SystemRoot\system32\NTDLL.DLL"
"SystemRoot\system32\NTLSAPI.DLL"
"SystemRoot\system32\OLE32.DLL"
"SystemRoot\system32\OLEAUT32.DLL"
"SystemRoot\system32\PSAPI.DLL"
"SystemRoot\system32\RPCRT4.DLL"
"SystemRoot\system32\TLNTSVR.EXE"
"SystemRoot\system32\USER32.DLL"
"SystemRoot\system32\WS2_32.DLL"
"SystemRoot\system32\WS2HELP.DLL"
If you wanted to completely remove Telnet you would have to ascertain which of the above were unique only to that service and remove those.
<Edit>
From my tests, no other service has the following depencencies
"SystemRoot\system32\NTLSAPI.DLL"
"SystemRoot\system32\PSAPI.DLL"
"SystemRoot\system32\TLNTSVR.EXE"
However more programs may depend on the dlls.
Your safest bet would to be delete the service using sc.exe as above. You could delete telnet.exe from system32 if you feel the need.
</Edit>
This post has been edited by Yzöwl: 10 August 2005 - 02:31 PM