A couple of changes have been made as follows:

Backdrop:
A backdrop is now displayed for the duration of the installation process.
This is enabled by including a bitmap file of dimensions 640 x 480 pixels with the name "backdrop.bmp" in the same subdirectory as the installer executable, install.exe

Verbose:
This was already available but has been improved so assigning a value of 0 as:
"Verbose=0"
in the bbc.ini file held under the same subdirectory as the installer executable, will provide general headings during installation such as:
"Copying files..."
"Creating Program Groups and Icons..."
"Installing Fonts...".

Assigning a value of 1 will provide verbose explanation of the installers progress, eg:
"Installing File PostPat.exe"
"Adding Group BBC Worldwide"
"Adding Item Postman Pat to BBC Worldwide"
"Installing Font PostPat.ttf"