i created a webdav remote network folder to connect to. the creation of the folder was successful,and i was able to log-in. but when i tried to copy a file into the folder, it gave me the error code 0x80070780, and "this file cannot be accessed by the system". it is very strange that i had another webdav folder created few months ago, and that one works fine. i'm using windows 7 professional on Lenovo X201i, any help will be appreciated!

I presume you are using the default WebDAV client in Windows. See the following page for alternatives: http://barracudaserver.com/products/BarracudaDrive/tutorials/mapping_windows_drive.lsp

You may refer: WebDAV Over SSL with Windows 7 http://blog.gerke-preussner.de/2010/12/webdav-over-ssl-with-windows-7/ Changes are needed on the server. Important Note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”