LISP code does not work in the Russian version of AutoCAD, letters are not displayed correctly in the editor.

[galkin_vadim_prog]

https://www.youtube.com/watch?v=g1pEGcQaYYw

(defun c:A4 ()

   (command "RECTANG" "0,0" "297,210")

)

https://www.youtube.com/watch?v=AW7RXho38_I

(defun C:HEXAGON (/ center radius angle p1)
(setq center (getpoint "\nSpecify center point: "))
(setq radius (getdist center "\nSpecify radius: "))
(setq angle (/ pi 3)); 60 degrees in radians
;; Create 6 points for the hexagon
(setq p1 (polar center (* 0 angle) radius))
(command "pline" p1)
(repeat 6
(setq p1 (polar center (* angle 1.0) radius))
(command p1)
(setq angle (+ angle (/ pi 3)))
)
(command "close")
(princ "\nHexagon created successfully.")
(princ)
)

[paullimapa]

@galkin_vadim_prog What AutoCAD version number are you running?

[galkin_vadim_prog]

AutoCAD 2025 — Русский (Russian)

[paullimapa]

See if it makes a difference installing the 2025.1.1 update

Also have you tried installing VS Code instead of continuing to rely on VLide to program which Autodesk no longer recommends?

AutoCAD 2025 Developer and ObjectARX Ayuda | Getting Started with Visual Studio Code (AutoLISP/VS Co...

[galkin_vadim_prog]

Іn the English version of AutoCAD 2025 1.2 all examples work!
In the Russian version of AutoCAD 2025 1.2 only the first example works!

The second example causes an error.

1. Is there a version of Autolisp in Russian?

2. How to Change Autolisp Editor from Command Line?
3. Іn the first video there is an input in the command line near the cursor how to do this?
https://youtu.be/g1pEGcQaYYw?t=68

[paullimapa]

Don’t think there’s a Russian version. 
The LISPSYS system variable controls which editor is used:

https://help.autodesk.com/view/ACD/2024/ENU/?guid=GUID-1853092D-6E6D-4A06-8956-AD2C3DF203A3
For the answer to your last question are you referring to dynamic input?

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/How-to-enable-or-d...

[galkin_vadim_prog]

Where are the Visual Studio program path settings located?

[galkin_vadim_prog]

What button in the video do you need to press to enter the command to execute?

[paullimapa]

After entering LISPSYS and setting that to either 1 or 2 you have to close and restart AutoCAD. Then you should be able to enter VLISP command and VS Code should open. 

[galkin_vadim_prog]

Yes, VS Code open

[galkin_vadim_prog]

There are two questions left
1. Is that the English Autolisp does not work in the Russian version?
2. How to enter a command line command near the mouse? https://youtu.be/g1pEGcQaYYw?t=68

[paullimapa]

Since I don’t have Russian version of AutoCAD I cannot answer you. But I don’t see why it doesn’t work. As long as you’re using the English command functions and to invoke the English commands by preceding with an underscore that is _Line. 
I believe I already answered your second question on entering commands at the mouse cursor by enabling dynamic input. 

• Press the F12 key to toggle Dynamic Input on and off.

• Change the DYNMODE system variable value to 1, 2, or 3 for ON, or 0 for OFF (see DYNMODE (System Variable) for more information on the differences).

[vince_aman]

What version of Windows? I'm having issues with foreign characters in Windows 11, while everything works fine in Windows 10... 

[galkin_vadim_prog]

Windows 11

[paullimapa]

Time to submit  trouble ticket to inform Autodesk 

[galkin_vadim_prog]

Dynamic input by F12 works, command input does not work as in the video.

How to make such command input from the mouse?

[vince_aman]

Did this work before? Did it work in Windows 10?  Or can you test in Windows 10? 

[paullimapa]

odd...what is your dynmode set to?

[paullimapa]

All controlled by dynamic input as stated by Autodesk:

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/distance-command-d...
If still doesn’t work even after setting dynmode to 3 then try resetting AutoCAD 

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/How-to-reset-AutoC...

[galkin_vadim_prog]

DYNMODE on 1 or 3 works!
DYNMODE on 0 or 2 does not work!