LISPSYS (System Variable)

Controls the default AutoLISP development environment and the editor launched with the VLISP command.

Value	Description
0	Visual LISP IDE (VL IDE) is set as the default editor, however AutoLISP functions don't fully support Unicode characters. AutoLISP source (LSP) files when saved and compiled use the ASCII (MBCS) character set. Note: This setting results in the behavior of AutoCAD 2020 and earlier releases, and is supported on Windows only.
1	Visual Studio (VS) Code is set as the default editor and AutoLISP functions fully support Unicode characters. AutoLISP source (LSP) files, when saved, use the encoding set in VS Code, and when compiled, they use the Unicode character set.
2	Visual Studio (VS) Code is set as the default editor and AutoLISP functions fully support Unicode characters. AutoLISP source (LSP) files, when saved, use the encoding set in VS Code, and when compiled they use the ASCII (MBCS) character set.

Value

Description

Visual LISP IDE (VL IDE) is set as the default editor, however AutoLISP functions don't fully support Unicode characters.

AutoLISP source (LSP) files when saved and compiled use the ASCII (MBCS) character set.

Note: This setting results in the behavior of AutoCAD 2020 and earlier releases, and is supported on Windows only.

Visual Studio (VS) Code is set as the default editor and AutoLISP functions fully support Unicode characters.

AutoLISP source (LSP) files, when saved, use the encoding set in VS Code, and when compiled, they use the Unicode character set.

Visual Studio (VS) Code is set as the default editor and AutoLISP functions fully support Unicode characters.

AutoLISP source (LSP) files, when saved, use the encoding set in VS Code, and when compiled they use the ASCII (MBCS) character set.

Note: AutoCAD must be restarted after changing the current value of the LISPSYS system variable to switch AutoLISP development environments.