I came across below question where the solution for IE 8 is provided.
Call .Net assembly from OBJECT tag in IE8
Is there any solution or workaround for the Object tag code for Microsoft Edge browser. The .net application is built in .Net 2.0 Framework. it is working fine now till IE7, but as Internet Explorer browser might be removed it should get rendered on Microsoft Edge.
ExamineFile.dll is a dll of class library containing a Windows Form and related source code.
<object id='ExamineFile' name='ExamineFile' classid='ExamineFile.dll#ExamineFile.FileInfo' ></object>
UPDATE
I updated HTML to HTML 5 and modified tag as below
<object id='ExamineFile' name='ExamineFile' data='ExamineFile.dll#ExamineFile.FileInfo' type='application/x-msdownload' ></object>
I am getting below result now.