Error HRESULT E_FAIL has been returned from a call to a COM component

Question

Hi,I have been running Syncfusion Essential PDf version 6.4.0 on a Windows 2003 64 bit server for some months without any problems. Now, however, calls to the HtmlConverter.ConvertToImage() or Convert() functions fail with the message 'Error HRESULT E_FAIL has been returned from a call to a COM component'The program and components are unchanged and still work perfectly on the developement machine (Windows XP). The server has had the usual updates and presumably one of these has caused the problem. The Internet Explorer version is 7.0.5730.13 64 bit. Any help you can give will be appreciated.Peter Mitchison

Peter Mitchison · Answer

I should have posted this on the Essential PDF ASP.NET forum so I have moved posted it there now.Peter Mitchison

Sri Subhashini M · Answer

Hi Peter,Thank you for your interest in Essential PDF.I regret that I was not able to reproduce the issue in our testing environment. This issue may occur due to the usage of interop assemblies which throws this exception in some environment because of the IIS restrictions. Some of the solutions suggested in websites for these kind of exception are :1) Set full control to ASP .NET permission2) Restart IISKindly go through the video clip for more information,http://www.syncfusion.com/support/user/uploads/SampleVideo_de297d7b.zipBasically, the Windows 2003 Server defaults to an internet security configuration which may not allow you to access the URL. You may have to relax or disable the enhanced security configuration to allow access to the pages you want to render. If removing the internet enhanced security configuration component is an option, you can do so from the "Add/Remove Windows Components" section of the "Add or Remove Programs" control panel. The internet enhanced security configuration component should be listed as "Internet Explorer Enhanced Security Configuration".Please try this and let us know if you need any further details.Regards,Suba