The process cannot access the file, because it is being used by another process

[Skivey]

I am creating a file in local drive with content by using below code. \[code\]File.WriteAllLines(path, contents);\[/code\]I am attaching this file to a mail and sending acrross the team. Once mail sent I need to delete the file, to delete the file I am using below code but I am getting runtime error\[code\]File.Delete(path);\[/code\]Error Message : The process cannot access the file, because it is being used by another processby default WriteAllLines() method closes the file but still it is opened by another process. I can only delete the file by executing the code after sometime but this is not the scenario. I need to delete it once the mail has been sent. Update\[code\]System.Net.Mail.MailMessage mailMessage = new System.Net.Mail.MailMessage(); mailMessage.To.Add(new System.Net.Mail.MailAddress(recipient, ToName)); mailMessage.From = new System.Net.Mail.MailAddress(From, FromName); mailMessage.Subject = Subject; // "Outlook calendar as attachment"; // modified by Srikanth J on 28/06/2012 mailMessage.Body = "This is a test message"; System.Net.WebClient webclient = new System.Net.WebClient(); webclient.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials; for (int i = 0; i < item.Attachments.Count; i++) { string url = item.Attachments.UrlPrefix + item.Attachments; SPFile file = item.ParentList.ParentWeb.GetFile(url); mailMessage.Attachments.Add(new System.Net.Mail.Attachment(file.OpenBinaryStream(), file.Name)); } System.Net.Mail.Attachment mailAttachment = new System.Net.Mail.Attachment(path); mailMessage.Attachments.Add(mailAttachment); smtp.Send(mailMessage);\[/code\]Any help is appriciated, Thank you.