Function Entry: VLAX-MACHINE-PRODUCT-KEY

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Function Entry: VLAX-MACHINE-PRODUCT-KEY

Name

vlax-machine-product-key

Class

Visual LISP Windows registry helper

Syntax

(vlax-machine-product-key)

Description

Returns the Windows registry path for the AutoCAD product in the machine-wide registry hive.

Return Values

Returns a string.

Notes

Autodesk documents this as returning the HKLM registry path.
Autodesk documents that this function replaces vlax-product-key, which was used in AutoCAD 2012 and earlier.
Autodesk also documents that use requires a prior call to vl-load-com.

Availability

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.

Source Notes

[vlax-machine-product-key (AutoLISP/ActiveX)](https://help.autodesk.com/cloudhelp/2024/ITA/AutoCAD-MAC-AutoLISP-Reference/files/GUID-2EB68815-FDF9-4235-918B-025FB9A42220.htm)
[Windows Registry and Property List File Functions Reference (AutoLISP)](https://help.autodesk.com/cloudhelp/2023/ENU/AutoCAD-AutoLISP-Reference/files/GUID-E3D3DA29-AF63-41D3-865C-39E50FF31596.htm)

Compatibility

Available on AutoCAD for Windows only; not available in AutoCAD LT for Windows.