TERMINAL EMULATION

Alt Key

Many applications take advantage of the "Alt" key.  However many keyboards and terminal emulations do not support the "Alt" key.  The Georgia SoftWorks Windows NT/2000 Telnet Server allows the "Alt" key sequence to be transmitted to an application by providing a substitute key sequence (the Alt Prefix) for the "Alt" key. The default Alt Prefix is "Ctrl-b".

For example, in order to transmit "Alt-f"  you will  type:

 Ctrl-b and then f.

(Depress Ctrl then b, release the keys and then depress f).

In order to really type in the AltPrefix character from the keyboard you will have to type it twice, like Ctrl-b Ctrl-b to get the Ctrl-b.

A different Alt Prefix can be configured using "AltPrefix" parameter in the registry editor. The default value is set to two 0x02  which is the ASCII value of Ctrl-b, Other values are as follows:

Alt Prefix values

This is how to change the registry key for the AltPrefix.

Note: (you must be on the Windows NT/2000 system that the Georgia SoftWorks Windows NT/2000 Telnet Server is installed. However you may connect to the Windows NT/2000 Registry from a remote location).

The key is:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ GS_Tnet\Parameters\AltPrefix

1.      Click the Start button at the bottom left corner of your screen.

2.      Click RUN

3.      Type REGEDT32 

4.      Click OK

5.      Select Windows item HKEY_LOCAL_MACHINE

6.      Select the menu item Edit

7.      Move the mouse pointer and click  Find

8.      Type AltPrefix

9.      Click on Find Next

10.  Select the menu item Edit and then click on Modify

11.  Enter the new value for the AltPrefix and click OK

The new AltPrefix  will take effect for all new sessions.

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Last modified: March 17, 2009