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Windows 7: How to Enable Telnet Links in IE8?

21 Apr 2010   #1
popokrew

Windows 7 Enterprise 64-bit
 
 
How to Enable Telnet Links in IE8?

Hello All,

Just got on to Win 7 Enterprise 64 at work. I was able to add the registry hack for IE7 on Win XP to enable telnet:// links but this has proved to be an issue with IE8 in win7. Has anyone been able to get this to work? Ive been googling for a few days now and even searched the forums. I use SecureCRT and would like it to open when clicking a telnet://x.x.x.x link in IE8. Any help would be appreciated.

Thanks.


My System SpecsSystem Spec
.
21 Apr 2010   #2
Pontii

Windows 7 Better then yours
 
 

Actually, you aren't actually using IE for telnet, it just calls the built in client so you are using a real client. It is an easier way to start the telnet client though.

There should not be a space in the word TELNET in the Registry Key name, the forum editor must have added that on the other site; happens here as well on lines longer than 75 characters that do not contain a space. That my be why it didn't work for you.
And the wording can be confusing. You create a new Dword value (the DWORD Name part) which contains Data (the DWORD Value part).
You can't rename the Default value.
You right click in the right pane, point to New, click Dword value. A new Name will appear named New Value #1. Should already be highlighted ready to rename. Then name that new item iexplore.exe. You then double click it and set it to zero, though it should already be zero.

It does work for IE8.


You can copy the text in the following code block into Notepad, save it as a .reg file (Be sure to change the Save as Type box to All Files) and double click to create the entry. I've included a line to remove the one with the extraneous space if it exists.

Quote:
Windows Registry Editor Version 5.00

[-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_DISABLE_TELNE T_PROTOCOL]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_DISABLE_TELNET_PROTOCOL]
"iexplore.exe"=dword:00000000
My telnet shell command already had the rundll32 part. That the website linked above doesn't have the correct value though. It should include the full path as that makes it harder for malware to interfere:
Quote:
Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\telnet\shell\open\command]
@="\"C:\\WINDOWS\\system32\\rundll32.exe\" \"C:\\WINDOWS\\system32\\url.dll\",TelnetProtocolHandler %l"
Note that the last character is actually a lowercase letter L, not the number 1.
If your Windows folder is not on C: or is named something else, you'd need to modify that to match your system, or use this version which uses the %Systemroot% variable instead of hard coding the path:
Quote:
Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\telnet\shell\open\command]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00,6f,\
00,74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,\
72,00,75,00,6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,\
00,25,00,53,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00,6f,00,74,00,25,00,\
5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,75,00,72,00,6c,\
00,2e,00,64,00,6c,00,6c,00,2c,00,54,00,65,00,6c,00,6e,00,65,00,74,00,50,00,\
72,00,6f,00,74,00,6f,00,63,00,6f,00,6c,00,48,00,61,00,6e,00,64,00,6c,00,65,\
00,72,00,20,00,25,00,6c,00,00,00
My System SpecsSystem Spec
26 Apr 2010   #3
popokrew

Windows 7 Enterprise 64-bit
 
 

Thanks Pontii for your reply. Unfortunately it didnt help. When I tried it I didnt have the space on the "TELNET" key. Either way, I deleted the key, restarted, then setup a .reg file with your suggestions. It still gives me a "page cannot be displayed" error when trying telnet:// links. Any more ideas?
My System SpecsSystem Spec
.

08 Jul 2010   #4
popokrew

Windows 7 Enterprise 64-bit
 
 

Hey guys, I still am trying to get this to work. It works in IE8 64bit but not in the regular 32bit IE. Any ideas? I attached the screenshot of regedit where you see I have the key correct.


Attached Thumbnails
How to Enable Telnet Links in IE8?-telnet.jpg  
My System SpecsSystem Spec
13 Jul 2010   #5
roncerr

Windows 8 Pro w/MC 32-bit
 
 

Quote   Quote: Originally Posted by popokrew View Post
Hey guys, I still am trying to get this to work. It works in IE8 64bit but not in the regular 32bit IE. Any ideas? I attached the screenshot of regedit where you see I have the key correct.
I'm also curious as to why telnet:// doesn't work in IE8 on 32-bit Vista or Windows 7 even after the above fixes.
My System SpecsSystem Spec
02 Mar 2011   #6
cabetecl

Windows 7 Pro x64
 
 

To make it work on 32bit IE you need to make the same Registry changes to the wow6432node....
My System SpecsSystem Spec
02 Mar 2011   #7
roncerr

Windows 8 Pro w/MC 32-bit
 
 

Quote   Quote: Originally Posted by cabetecl View Post
To make it work on 32bit IE you need to make the same Registry changes to the wow6432node....
Can't find the string "wow6432" in the registry of Win7 32-bit.
My System SpecsSystem Spec
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 How to Enable Telnet Links in IE8?




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