Hi Friends, i am having a problem in create directory on local machine through Asp.net source codeand coping file from website folder to my local machinethrough source code. by using File .Copy(DPath, savePath, true); that code generating Error : Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. the problem is Only occure only when i runwebsite on web. but on local machine its working fine. Thanks in Advance Email Id: dhemittal@gmail.com