Error Unhandled Exception when trying to open the editor in STAAD.Pro Connect Edition

	Product:	STAAD.pro
	First Affected Version:	21.00.01.12
	Found in Version:	21.00.01.12 and later
	Fixed and Released in Version:	N/A
	Area:	STAAD.Pro Editor
	Issue #:	N/A

Problem Description

Following error messages are obtained when the editor is opened from inside the STAAD.Pro CE in Windows 7 OS after a recent Windows update

Steps to Reproduce

Open the editor from the Utilities ribbon menu inside STAAD.Pro CE.

The Unhandled Exception messages show up

Solution

The error is being caused by a defect in one of the Windows Updates on Win7SP1 OS which corrupted one of the Windows font files. The solution is to manually replace the corrupted font file with correct version following the steps outlined below.

Download the zip file GlobalUserInterface.zip and extract the content to get the GlobalUserInterface.CompositeFont file
Copy and paste the GlobalUserInterface.CompositeFont file through Windows Explorer to %windir%\Microsoft.NET\Framework\v4.0.30319\WPF\Fonts
Copy and paste the GlobalUserInterface.CompositeFont file through Windows Explorer to %windir%\Microsoft.NET\Framework64\v4.0.30319\WPF\Fonts

More details on this issue are provided at the page https://github.com/dotnet/announcements/issues/53