Step to Run Crystal Report Viewer
Below steps are mandatory for run crystal report viewer in the system and need to do below setting in web.config file
Install Crystal Report Runtime from SAP website https://www.crystalreports.com/crystal-reports-visual-studio/ according to window installed on your server.
In Web.config file
Add below section in <System.Web>
<httpHandlers>
<add verb="GET" path="CrystalImageHandler.aspx" type="CrystalDecisions.Web.CrystalImageHandler, CrystalDecisions.Web, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/>
</httpHandlers>
</system.web>
Add below section in <handler>
<handler>
<add name="CrystalImageHandler.aspx_GET" verb="GET" path="CrystalImageHandler.aspx" type="CrystalDecisions.Web.CrystalImageHandler, CrystalDecisions.Web, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" preCondition="integratedMode"/>
</handler>
Copy folder crystalreportviewers13 from Files\Areas\ViennaBase\Scripts
and Paste in aspnet_client\system_web\4_7_3282 or 4_0_30319 or this folder may different according to http://ASP.net extension in your hosting files of server.
Open System Configuration window with Role : System Administrator
Name: USE_CRYSTAL_REPORT_VIEWER
Value: Y / N
As show in below image
System will check the value of key "USE_CRYSTAL_REPORT_VIEWER". If it is 'Y' then system will show the crystal report in Crystal Report viewer.
On doing above setting if user will open any crystal report within the VIENNA Advantage then system will not show any option of "Choose Report Type" as we show in open the report from menu. it will directly open the report in Crystal Report Viewer.