Function Entry: VL-LOAD-ALL

vl-load-all

Visual LISP application-loading function

(vl-load-all filename)

• filename — string naming the file to load.

Loads a Visual LISP application for all open documents under host semantics.

Returns nil on success; otherwise signals an error.

Loads application code into multiple document contexts.

Part of the Visual LISP application-loading layer and more document-model-sensitive than load.

• AutoCAD 2026: documented (per Autodesk reference page).
• BricsCAD V26: presumed compatible (no contradicting page found).
• Status: AutoCAD documented; BricsCAD presumed-both pending Phase 4 verification.

• [vl-load-all (AutoLISP)](https://help.autodesk.com/cloudhelp/2024/JPN/AutoCAD-MAC-AutoLISP-Reference/files/GUID-116F4D02-4B1A-4298-B38C-5B38FD982867.htm)
• [To load functions across all document namespaces (AutoLISP)](https://help.autodesk.com/cloudhelp/2026/KOR/AutoCAD-LT-AutoLISP/files/GUID-08F778AF-6A57-41AA-8AF5-3E56FEB1958B.htm)
• [Namespace Communication Functions Reference (AutoLISP)](https://help.autodesk.com/cloudhelp/2025/ITA/AutoCAD-MAC-AutoLISP-Reference/files/GUID-F5DD5472-1695-4CA3-9110-E6008E87BB89.htm)

• Autodesk documents that the filename extension is required; unlike load, vl-load-all does not add one.
• Autodesk documents that the file is loaded into all open documents and into documents opened later in the same session.

Supported on Windows, macOS, and Web in current Autodesk documentation.