Help Needed: Spread.NET 18.1.0 Trial License Not Working in .NET 8 WinForms App

Hello,

I’m migrating a Windows Forms application from .NET Framework 4.7.2 to .NET 8 using Visual Studio 2022.

In my old project, I used FarPoint Spread 12 with a full license. Now, I want to use Spread.NET18.1.0 (trial version) in my .NET 8 app to check compatibility.

I have installed the Spread.NET 18.1.0 trial version, and it shows a valid trial license on my machine (activation and expiry date are fine). I’m using the DLLs from the installed trial version directly.

Here’s what I’ve done so far:

Replaced the old FarPoint 12 DLLs with Spread 18.1.0 DLLs in migrated application. 

After that, I cleaned and rebuilt the solution. No build errors. 

But when I debug/run the application, I get this popup: “License for the Spread.NET V18.1.0 EN is not found. Application execution is terminated.”
It says the app was built without a license. But I’m building it on the same machine where the trial is installed and activated.

Can someone help with:
How can I test farpoint 18.1.0 in .net 8 windows form application?

Does .licx supported properly in .NET 8 with Spread.NET 18.1.0 trial?

What exactly should I add to the project to make the trial license work?

Is there anything extra I need to install or configure?

Thanks in advance!