I am using XP and Service Studio 5.1.1.6 .When i try to write the File in application path folder using the File_WriteBinary,I got alway Pernission denied to access that folder.I saw your page as in below link https://www.outsystems.com/NetworkForums/ViewTopic.aspx?Topic=How-to:-Setting-up-Application's-access-to-file-systems But there Right only for W2003 & W-vista. Can you please tell how to give the permission to that folder.Give some steps to solve the problem. thanks