just answer :)

Sorry but I mean creating a file without a name :)

You can proceed like that 1- Create a folder (as an example test.txt) 2-Click on start>run and write CMD 3- Browse using the CD command until you find the root folder hosting your wanted file 4- Use this command rename test.txt .txt

To create a folder without name, have a look to this link: http://www.cypherhackz.net/archives/2007/06/25/create-a-folder-without-name-in-windows-xp/ Best regards.