Use AssemblyLoadContext Internally Within Inventor Add-Ins

[TylerWarner33]

With Inventor 2025+ using .NET 8, there is no separate execution context for the add-in to run. So, if there is a Nuget package/assembly version conflict with the add-in and Inventor or another add-in, it will cause an error. Below are some resources for how to do this manually within each add-in.

Could this be built into the standard ApplicationAddInServer to prevent the need from doing this manually?

Blog article on Inventor add-in implementing AssemblyLoadContext:

https://tylerwarner.dev/how-to-use-assemblyloadcontext-for-isolating-inventor-addin-dependencies

Sample Inventor add-in implementing AssemblyLoadContext:

https://github.com/tylerwarner33/autodesk-inventor-assembly-load-context

Revit implementation discussion about internal implementation:

https://feedback.autodesk.com/project/forum/thread.html?cap=cb0fd5af18bb49b791dfa3f5efc47a72&forid=%...

[Yuming.Zeng]

Hi @TylerWarner33 ,

Thank you for your idea. This was logged as INVGEN-69391.

We're working on the research.

Yuming

[TylerWarner33]

From what I hear, the attempt to do this in Revit was broken for 2026, but expected to be completed in 2027.

[soonhui]

I hope that AutoCAD will also implement the same useful feature, as per here. 

[Yuming.Zeng]

@TylerWarner33 @soonhui 

You can give it a try with Inventor 2027 Beta 2 build. To load the addin in a separate Assembly Load Context, you can add below code into your .Addin file:

<UseInventorAssemblyContext >0</UseInventorAssemblyContext >

[ChrisMitchell01]

You can apply for access to the Inventor Beta program using this link - https://Autode.sk/InventorBeta

[TylerWarner33]

Awesome! I will test it out, thanks @Yuming.Zeng & @ChrisMitchell01.

I just posted the same idea on the Vault Ideas forum here.

This may or may not already be in development.

[Yijiang.Cai]

This idea has been implemented within Autodesk Inventor 2027, and please have a try. Many thanks!

[smilinger]

Great! I hope this is also implemented for Vault.