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Frequently Asked Questions
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  • How to share my session settings with others?

    Save your session as a file and give it to other users.
    The session can be directly started by double-clicking the file.

  • How can I generate SSH key pairs for TelNet98?

    Create the key pairs on the SSH server with the server's  ssh-keygen  utility.
    On OpenSSH run  ssh-keygen -m PEM  for the correct format.

    The following key file formats are supported:

    • SSH-1 RSA keys

    • SSH-2 RSA keys in PEM format
          your file should begin with  "-----BEGIN RSA PRIVATE KEY-----"

    • SSH-2 DSA keys in PEM format
          your file should begin with  "-----BEGIN DSA PRIVATE KEY-----"

    For other file types the puttygen utility (part of the PuTTY distribution)
    can be used to convert the file to an appropriate format.

  • Can I use my PuTTY SSH key with TelNet98?

    PuTTY formatted SSH key files  (PuTTY-User-Key-File-2)  are supported.

  • How do I activate the scroll bar?

    To enable scrolling assign a value greater 0 to Buffer lines:

    Properties -> Appearance Tab -> Buffer lines

  • Can I access the scroll bar with the keyboard?

    Yes, the following keys work with the scroll bar:

    Ctrl+Home, Ctrl+End, Ctrl+Up, Ctrl+Down, Ctrl+PgUp, Ctrl+PgDn

  • How to get the special non-Ascii characters (umlauts) displayed correctly?

    Go to

    Menu 'Options' > 'Input-/Output Key Mapping' -> Button 'Language Support'

    and select a suitable code page.

  • How can I change the code page for my TelNet98 sessions to CP 437?

    TelNet98 uses the OEM code page of the Windows installation.
    Thus, it is required to configure CP 437 in Windows. Go to

    Control Panel -> Regional Settings

    and assign 'English (United States)' as the language option to use with non-unicode (DOS) programs.

  • How can I prevent my users from closing the session window?

    In the TelNet98 Policy Editor uncheck 'Closing Sessions'

    The program is part of the TelNet98 distribution:  TelNet98 program group -> Toolkit -> Policy Editor

  • Why is my inkjet printer so slow when printing in Windows GDI mode?

    Go to

    Windows Control Panel -> Printers

    and set the printing quality for your printer to Draft Quality.

  • Why does my printer print only a blank page in 'Passthrough' mode?

    This effect occurs if the print driver doesn't support the PASSTHROUGH function.
    Use the Microsoft Generic Print Driver instead or demand a PASSTHROUGH-capable driver from the printer manufacturer.

  • How can I start a session from the Windows Startup folder?

    Save your session as a file and paste a shortcut of this file into the Windows Startup folder.

  • How can I start a session from the command line?

    Save your session as a file and run it with the START command.


    C:\>start MySession.etx

  • How can I start a Windows program with an ESC sequence from the terminal?

    this will run the Windows Calculator:

    $ echo -e "\033[yCALC.EXE"
  • How can I start a web link with an ESC sequence from the terminal?


    $ echo -e "\033[yShellExec http://www.telnet98.com/"

  • How can I open a local file with an ESC sequence from the terminal?

    The ShellExec sequence works with any registered Windows file type.


    $ echo -e "\033[yShellExec c:/MyFiles/readme.txt"

  • How can I manage multiple connections with TelNet98?

    The file menu items Save As and Create Shortcut have been implemented for this purpose.
    Just save your session settings as a file.
    TelNet98 file documents are registered in Windows and can be directly started by double clicking the file's icon in Windows. Each document contains its own set of session parameters (hostname, login, colors, etc. ...).

  • Is there any quicker way to modify saved TelNet98 files, than importing and saving them again?

    Yes, there is. TelNet98 comes with a shell extension.
    To quickly modify a TelNet98 document open the context menu (right mouse click on the file's icon), and select Edit Telnet Options, this will open a telnet property sheet.
  • How can I create a TelNet98 Intra or Internet link?

    There are two ways to create such a link:

    1. The Standard link
    Code sample:

    <A HREF="telnet://www.hostname.com"> simple Telnet Link </A>

    2. The TelNet98 enhanced link (will assign a complete set of session properties)
    - in TelNet98's Open Dialog save your preferred session data in a file, e.g. named session.etn
    - upload this image file to your web server
    - add the following HTML code to your web page:

    <A HREF="session.etn"> TelNet98 Session with all properties </A>

  • Is there any way to redefine the color/RGB-values TelNet98 uses?

    You can do this with the TelNet98 Color Editor.
    The program is part of the TelNet98 distribution:  TelNet98 program group -> Toolkit -> Color Editor

  • How can I uninstall TelNet98?

    Best is to use the Windows Uninstaller:

    Control Panel -> Add / Remove Program -> Eric's TelNet98

  • I try to use a program named ### with TelNet98, but the screen does not appear properly - Or: some of the cursor/function keys do not work. What can I do?

    1. Try to toggle the End Of Line wrap flag
    Properties -> Session Tab
    2. Try another TERM= value
    3. Ask your system administrator to create a telnet98 term type, using our optimized terminal drivers

    a) How to make the Driver for TERMINFO Curses
    - Get the latest telnet98.src terminfo source
    - Compile telnet98.src with the tic compiler:

         # tic telnet98.src

    b) How to make the Driver for TERMCAP Curses
    - Get the latest tn98cap termcap source
    - Append the file to your /etc/termcap:

         # cat tn98cap >> /etc/termcap

    The following corresponding values should be
    assigned in the session properties:
    - Session Tab:Term=telnet98
    - Session Tab:   End Of Line wrap checked
    - Key Codes Tab:Default
    - Function Keys Tab:Default

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