Opening a PDF file in Admin mode from a windows forms application (C#)

Question

Hi,
I need to open a pdf file using Windows Application. I have used the below code launch the pdf files.
Process prc = new Process();
            prc.StartInfo.FileName = "cmd.exe";
            Environment.CurrentDirectory = @"C:\SamplePDF\";
            prc.StartInfo.Arguments = " /C sample.pdf";
            prc.StartInfo.UseShellExecute = false;
            prc.StartInfo.CreateNoWindow = true;
            prc.Start();
This code is working fine without admin mode. But while running the output exe from bin folder with admin mode(right click the exe and choose "Run as Administrator"), pdf files are not launching . But its opened in the background application and I can see this from windows task manager.
Could anyone please help me on this issue ? Is there any other ways to launch a pdf file in admin mode ?
-Balaji.

Answer 1

Thank you for replaying so soon..
Well you are right by using a widget and etc.. but the problem is that I have been told that this application should open a PDF file that has bookmarks to each chapter of the text and one can make a search on this text by using pdf search.. So I do not have any other choice than opening a pdf :D and my time is unfortunately limit.
For solving the problem that the user may not have PDF reader.. well I have been told that user should install the pdf reader, so in my application package I am putting the installation file of PDF.
But going back to my problem.. I guess is someway I have to get the OS type of the user and I have to do a SWITCH or something on the OS type and then change the content of the Runtime.exec(). But the question is how can I get the OS type and what should I change in Runtime.exec().
So now any idea? any solution??