ASP.NET

Does anybody have any idea about this:-
I have several kinds of file(pdf,html,png) in my d: drive inside a folder . I want to open these files on the browser using anchor tag or any hyperlink control but the url should not display the path like d://Somefolder/File it should be like Localhost:1234/Somefolder/file.

            try
            {
                if (!string.IsNullOrEmpty(xsdFilePath))
                {
                    XmlSchemaSet schemas = new XmlSchemaSet();

                    schemas.Add(null, xsdFilePath);

                    XDocument xdoc = XDocument.Parse(xmlString);

                    //validates that an XMLDocument conforms to an XSD
                    xdoc.Validate(schemas, (o, e) =>
                    {
                        msg += e.Message + Environment.NewLine;
                    });
                }
                if (msg != "")
                    throw new Exception(msg);
            }
            catch (Exception e)
            {
                WriteErrorLog("Error in ValidateXml");
                LogError(e);
                msg = e.Message;
                return "Error - Document is invalid: " + msg;
            } <pre>

Simple I thought. I just the "catch (Exception e)" to "catch (ArgumentOutOfRangeException e)". Now when I run the application it receive the follow error:

The following is a sample SOAP 1.1 request and response. The placeholders shown need to be replaced with actual values.

Does anyone know what the problem is?

Thanks,

Steve Holdorf