>Danny, Try this...

FileName = Session["pdffile"].ToString(); // Set pdffile previously
Attach = "filename="+FileName.ToString();
Dest = @"c:\mylocation\"+FileName.ToString();

FileInfo PDFFile = new FileInfo(Dest.ToString());

Response.Clear();
Response.AddHeader("Content-Disposition", "attachment; "+Attach.ToString());
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Length", PDFFile.Length.ToString());
Response.WriteFile(PDFFile.FullName);
Response.End();

With Acrobat Reader 6.0 I am able to Save and Open a PDF this way.

Eric,

I had meant to try this earlier and still haven't had the opportunity. I wanted to say thanks very much for passing it along though. Did this help you resolve the issue with the corrupted header message?

Thanks again,