print html from service

Question

We have a requirement to print html text from a service. We have used InternetExplorerClass [ExecWB(OLECMDID.OLECMDID_PRINT, OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER, ref missing, ref missing)] . The code prints the html file when in a windows application. But in a service, it is printed to the document writer instead of the printer. Are there any settings/permissions to be given when it is run as a service?
InternetExplorer ie = new InternetExplorerClass ();
ie.DocumentComplete += new DWebBrowserEvents2_DocumentCompleteEventHandler (ie_DocumentComplete);
ie.PrintTemplateTeardown += new DWebBrowserEvents2_PrintTemplateTeardownEventHandler (ie_PrintTemplateTeardown);
object missing = Missing .Value;
ie.Navigate(htmlFilename, ref missing, ref missing, ref missing, ref missing);
while (!documentLoaded && ie.QueryStatusWB( OLECMDID .OLECMDID_PRINT) != OLECMDF .OLECMDF_ENABLED)
Thread .Sleep(100);
ie.ExecWB( OLECMDID .OLECMDID_PRINT, OLECMDEXECOPT .OLECMDEXECOPT_DONTPROMPTUSER, ref missing, ref missing);
while (!documentPrinted)
Thread .Sleep(100);
ie.DocumentComplete -= ie_DocumentComplete;
ie.PrintTemplateTeardown -= ie_PrintTemplateTeardown;
ie.Quit() ;

Sandhya Chandrasekharan · Answer

Thanks, that was the issue. It works now.

Manikavelu Velayutham · Answer

I think the service run under local service account. Thats the reason its pointing to the Document Writer. Just change it, surely it will choose the default printer.
Let me know if that solves the problem

Sandhya Chandrasekharan · Answer

Its a network printer

Manikavelu Velayutham · Answer

If its a network printer, just check whether your service run under local system account or as administrative account.
Sometimes that might cause an issue.

Manikavelu Velayutham · Answer

Is that a local printer or network printer ?

Sandhya Chandrasekharan · Answer

Thanks for your response. The default printer has been set to the printer. When printed from the windows application, it is printed to the printer. The problem is only when it is added as a service. Also tried setting the default printer programatically using System.Management classes.

Manikavelu Velayutham · Answer

Check the default printer in that machine. Sometimes, document writer will be marked as the default printer.
goto Start - > Printers & Faxes
mark the correct printer as default.
Then your problem will be solved