Openning files on the network asp .net

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.NET2.0

.NET

Hi
I need help with openning a file on the network. I create a file from the database and couldn't open it. The error says: The process cannot access the file '\\IP Address\Templates\testing.png' because it is being used by another process.

Is there a way to open a file without using the process. On my local machine there is no problem, but on IIS they fail to open.

Here is my code:

//Getting file from network
CustomerDocument custdoc = new CustomerDocument(DocumentID);
//Return the stream
byte[] filedata = custdoc.imgCustomerDocumentStream;
//Return filename, it has extension
string filename = custdoc.nvFileName;

//Saving on the server, filepath from the webconfig
string filepath = @"\\IP Addresss\\Templates";

try
   {
//Write stream to file
 using (FileStream fs = new FileStream(di + "\\" + filename, FileMode.Create,FileAccess.ReadWrite))
   {
   fs.Write(filedata, 0, filedata.Length);//write the file
   fs.Seek(0, SeekOrigin.Begin);
    }
//Trying to open a file
     ProcessStartInfo psi = new ProcessStartInfo();
     psi.FileName = di + "\\" + filename;
     Process.Start(psi);
    }
    catch (Exception ex)
    {
    //  throw;
     lblStatus.Text = ex.Message;
    }

Thanking you in advance.