Error 1603 is a generic machine-specific issue. One or more of the following fixes may resolve the error.

1.This error is known to occur on computers that do not have enough disk space for the installation.

2.The Temp directory is not clean.Try to clean it.

3.A certain file on the machine is locked. To fix this:

a. Close all applications running in the background.
b. Reboot your computer.
c. Run the installation again.

If you are using Windows 95, 98, ME, 2000, or NT, the Windows Installer Service may not be properly installed on the machine. Update the system with the latest Windows Installer Service.

4. On Windows NT, 2000, or XP, make sure you have administrative privileges.

Another reason your installation may not run is changes to your computer caused by recent updates. For example, updates to your operating system may cause installations created prior to the update to fail. You may want to uninstall any recent updates, install your application, and reinstall the update. WARNING: You should check with the software vendor who created the update to ensure no adverse affects will result from uninstalling the update.

Source: installshield.com