Modern Windows applications are not self-contained. When you install Inventor (which typically requires 15-25 GB of disk space), it writes thousands of entries into the Windows Registry. It registers special Dynamic Link Libraries (DLLs) into the System32 folder. It installs common frameworks like .NET Runtime, C++ Redistributables, and DirectX.
Many shady sites offer a “portable Autodesk Inventor 2024” as a 500 MB zip (real Inventor is ~8–12 GB). Here’s what you risk:
Autodesk Inventor is a heavyweight mechanical design and simulation application. The barriers to portability include:
If you genuinely need CAD on any computer without installation, try:

