string[] filePaths = Directory.GetFiles(@"\94.175.237.35inetpub$wwwrootmytestBlogEngine", "*.xml");

string[] filePaths = Directory.GetFiles(@"..BlogEngine", "*.xml");

string folderPath = Server.MapPath("~/BlogEngine");
string[] filePaths = Directory.GetFiles(folderPath, "*.xml");

string[] filePaths = Directory.GetFiles(Path.GetFullPath(@"..BlogEngine"), "*.xml");