https://community.fabric.microsoft.com/t5/Custom-Visuals-Development/custom-visual-call-3rd-party-API/m-p/333148#M572 <P>Browsers don't allow JavaScript to call any dll due to security reasons.</P><P>Our recommendation is to try to use WebWorker API or to split the big task into a few small chunks and execute them asynchronously in order not to block the main JS thread.</P><P>&nbsp;</P><P>Ignat Vilesov,</P><P>Software Engineer</P><P>&nbsp;</P><P>Microsoft Power BI Custom Visuals</P><P><A href="mailto:pbicvsupport@microsoft.com" target="_blank"><SPAN>pbicvsupport@microsoft.com</SPAN></A></P><P>&nbsp;</P><P>&nbsp;</P> Fri, 05 Jan 2018 11:54:21 GMT v-viig 2018-01-05T11:54:21Z https://community.fabric.microsoft.com/t5/Custom-Visuals-Development/custom-visual-call-3rd-party-API/m-p/331251#M563 <P>is there any way to trigger from custom visual 3rd party API process (.dll) ? that will add extra calculated data?</P><P>&nbsp;</P><P>Thnx</P> Tue, 02 Jan 2018 11:31:01 GMT https://community.fabric.microsoft.com/t5/Custom-Visuals-Development/custom-visual-call-3rd-party-API/m-p/331251#M563 batkaval 2018-01-02T11:31:01Z https://community.fabric.microsoft.com/t5/Custom-Visuals-Development/custom-visual-call-3rd-party-API/m-p/333148#M572 <P>Browsers don't allow JavaScript to call any dll due to security reasons.</P><P>Our recommendation is to try to use WebWorker API or to split the big task into a few small chunks and execute them asynchronously in order not to block the main JS thread.</P><P>&nbsp;</P><P>Ignat Vilesov,</P><P>Software Engineer</P><P>&nbsp;</P><P>Microsoft Power BI Custom Visuals</P><P><A href="mailto:pbicvsupport@microsoft.com" target="_blank"><SPAN>pbicvsupport@microsoft.com</SPAN></A></P><P>&nbsp;</P><P>&nbsp;</P> Fri, 05 Jan 2018 11:54:21 GMT https://community.fabric.microsoft.com/t5/Custom-Visuals-Development/custom-visual-call-3rd-party-API/m-p/333148#M572 v-viig 2018-01-05T11:54:21Z