CAD Assistant

by Open Cascade SASv1.6.0

Last updated Jun 8, 2026

CAD Assistant is a free offline 3D CAD viewer and converter supporting formats such as STEP, IGES, STL, and more, developed by Open Cascade.

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Install with winget

$ winget install --id OpenCascade.CADAssistant --exact --version 1.6.0

Run in Command Prompt, PowerShell, or Windows Terminal. Prompts for any agreements.

Silent install command for CAD Assistant

CAD Assistant uses EXE (Inno Setup). The silent install switches are /VERYSILENT /SUPPRESSMSGBOXES /NORESTART.

One-line silent install (x64, machine scope)

cad_assistant_1.6.0_2021-10-05_win64.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART

See the full silent install reference for CAD Assistant →

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Installers · v1.6.0

Architecture	Type	Scope	Install	Download
x64	EXE Inno Setup	machine		Direct

Copy a command tailored to that specific architecture, type, and scope - useful when winget would otherwise pick a different default.

Security

No known CVEs for CAD Assistant.

Coverage is best-effort and depends on a winget package mapping to an NVD CPE entry. Absence here is not a guarantee of safety.

Frequently asked questions

How do I install CAD Assistant on Windows?

Open Windows Terminal, PowerShell, or Command Prompt and run: winget install --id OpenCascade.CADAssistant --exact --version 1.6.0. winget downloads the installer from Open Cascade SAS and runs it. Requires Windows 10 (1809+) or Windows 11.

How do I install CAD Assistant silently for unattended deployment?

Add --silent and accept the agreements upfront: winget install --id OpenCascade.CADAssistant --exact 1.6.0 --silent --accept-package-agreements --accept-source-agreements. This is the variant Intune, Configuration Manager, and other deployment tools should use.

What are the silent install switches for CAD Assistant?

CAD Assistant uses EXE (Inno Setup). Run the downloaded installer with: cad_assistant_1.6.0_2021-10-05_win64.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART. The silent switches are /VERYSILENT /SUPPRESSMSGBOXES /NORESTART.

How do I uninstall CAD Assistant via winget?

Run: winget uninstall --id OpenCascade.CADAssistant --exact. Add --silent for unattended uninstalls. winget will use the registered uninstaller from CAD Assistant's Apps & Features entry.

Is CAD Assistant free?

CAD Assistant is distributed under Freeware. Refer to the publisher (https://www.opencascade.com/products/cad-assistant/) for the full license terms - Wingetly itself does not charge for installation.

Does CAD Assistant work on Windows 10?

Yes, as long as your Windows 10 build supports winget (1809 or newer). winget ships with App Installer on Windows 10/11 and pulls CAD Assistant directly from the publisher.

How do I keep CAD Assistant up to date?

Run winget upgrade --id OpenCascade.CADAssistant --exact, or winget upgrade --all to update everything winget tracks. We index 1 version of CAD Assistant from microsoft/winget-pkgs.