Originally Posted by
fcwilt
You will only find that file in your DropBox folder BUT as I said that folder and all the folders/files in it are normal Windows folders/files that are located on your local hard disk.
The ONLY thing that makes them "special" is the DropBox application has asked Windows to monitor those folders/files for changes and tell the DropBox application so it can upload the changed files to the DropBox server.
If you update a file, in the DropBox folders(s) on Computer A, any copies of that file on Computers B, C, D, etc are now out of date. The DropBox application on Computer A, informed of the changed files(s) by Windows, will upload those changed files to the DropBox server(s). The DropBox application on Computers B, C, D, etc will determine (by communicating with the DropBox server(s)) that the local files (on Computers B, C, D, etc) are out of date and get the new updated files from the DropBox server(s).