AppSync allows you to update your ThinApp applications via http or https. However, we don’t always have a web infrastructure to use or perhaps we would rather use a file share or replicated share like DFS or a NAS device. With AppSync, you can use these types of locations for the AppSyncURL= field. Remember, all we need is a URL location specified for the feature to work, so if you want to use a file share, follow these guidelines for your configuration of choice.
For a UNC:
\\server\share\path\to\file “convert this to” file://server/share/path/to/file
For a Local path:
c:\path\to\local\file “convert this to“ file:///c:/path/to/local/file (note there are 3 slashes following file: here)