Not able to print PDF from a windows service

Hi,

I am using trial version of Quick PDF Library to print PDF files from a .net 3.5 windows service running on 64 bit window server 2008 machine.

I have written following code to do so:

// Create an instance of the class and give it the path to the DLL
PDFLibrary qp
    = new PDFLibrary(ConfigurationManager.AppSettings["QuickPDFLibraryPath"]);
// Check if the DLL was loaded successfully
if (qp.LibraryLoaded())
{
    // Include and check the validity of the license key
    if (qp.UnlockKey(ConfigurationManager.AppSettings["QuickPDFLibraryKey"]) == 1)
    {
        qp.LoadFromFile(fileName);
        int printOptions = qp.PrintOptions(1, 0, "");
        string printerName = ConfigurationManager.AppSettings["PrinterName"];
        int pageCount = qp.PageCount();
        qp.PrintDocument(printerName, 1, pageCount, printOptions);
    }
}

This code works fine on our dev and QA environment. But when I tried to run it on one of our client machines (I just wanted to ensure that it works there before asking my client to buy this tool), it was not working. It was neither giving any error nor firing the print command on the printer.

Please help.

Thanks,
Garima

Thanks Ingo...

I checked the printer name and it is same as the one returned by GetPrinterNames() method.

I forgot to mention few points that might give you more insight into the problem.
1) I am using a network printer
2) This method works fine from Windows application.
3) On running this method from Windows service, it gets struck indefinitely (I even waited for more than an hour) while executing the following statement:
qp.PrintDocument(printerName, 1, pageCount, printOptions);
I have to restart the service after this call.

Thanks,
Garima

Thanks Ingo....I went through the link provided by you. It talks about following problems:

1) Problem while printing large document file. Note that I am trying to print pdf document containing 1 page only.