Using the file base TWebUpdate demo app :

Copy all files in the newapp subfolder
to C:\NEWAPP

The demo assumes the availability of the files
DATAAPP.INF, CARBON.CAB, CARS.CAB in the directory C:\NewApp

DATAAPP.INF is the control file with the update instructions
CARBON.CAB & CARS.CAB are application data updates

To run the demo :

Unzip the DATAAPP.EXE demo anywhere on the harddisk.
Create a new directory C:\NewApp
Move files DATAAPP.INF, CARBON.CAB and CARS.CAB to the directory C:\NewApp
Run DataApp.exe from anywhere on the harddisk and press "Check for updates"
The DataApp.exe will be replaced by the new version.

