Windows search has an option to search for files by created date.

So if you set the created date to today and start at c:\ then it will eventually return your file. Obviously if you can narrow down your search location then it will be a lot quicker.

For the new Windows Search the option is there on the main page (on the left):

For the old Search Companion you have to select **When was it modified?** (on the right):

![alt text][1] ![alt text][2]


  [1]: http://www.forman.free-online.co.uk/images/windows-search.png "Windows Search screen"
  [2]: http://www.forman.free-online.co.uk/images/search_companion.png "Search Companion screen"