Dateiliste

The window should now look similar to this one:

In the 'Project' menu select 'Setup Options' and then 'Uninstall'. It's the last item in the menu. Because I don't want the software to create an entry in the 'Add/Remove Software' panel I have to make sure that no uninstall information will be stored later when the receiver runs the program.

Uncheck 'Uninstallable' to not have Inno Setup create uninstall information.

Now we're almost done. Go to the page 'Disk Spanning' and check this option ('Enable disk spanning').

The field 'Disk slice size' is what we're interested in. This is the size of a file chunk. In this example I've set it to 5 000 000 bytes (a bit less than 5 MB) so that a slice still fits in an email.

Click 'Ok' and save your script somewhere ('File', 'Save As').

Now go to the menu 'Project' again and select 'Compile Setup' or press the toolbar button to compile the setup. The compiler generates files of the specified size which can be sent via email etc.