Replied 8 September 2017, 3:21 pm EST
Here is the basic list of upgrade steps:
To upgrade your existing VS.NET projects
For existing projects, make sure the reference path is correct, and add the new FpSpread assemblies. To do so, follow these instructions:
Open the project in VS.NET and close all the open forms.
In VS.NET in your project, open the Solution Explorer (Ctrl+Alt+L).
Right-click the Project and choose Properties.
From the Project's Property Pages, select Reference Path and modify the Reference Path so it points to the location where you installed the latest assemblies. Then click OK.
Click OK to close the Add Reference dialog and add these assemblies to your project.
Verify that the version number in the licenses.licx file is correct. For example:
FarPoint.Win.Spread.FpSpread, FarPoint.Win.Spread, Version=8.35.20143.0, Culture=neutral, PublicKeyToken=327c3516b1b18457
FarPoint.Win.Spread.FpSpread, FarPoint.Win.Spread, Version=9.35.20151.0, Culture=neutral, PublicKeyToken=327c3516b1b18457
I usually remove all the old references and add the new ones (then save, rebuild all).