This is a Microsoft/environmental-based issue and we have collected some best known practices in order to resolve this error. However, you might need to contact Microsoft for additional support.
Error 1603 is a known Microsoft/environmental issue. This error message is displayed by the Microsoft Windows Installer Engine and is a general error code that indicates a problem occurred during the installation.
The following is a non-exhaustive list of known causes for this error.
To resolve this issue, complete the following steps.
For more information on the error 1603 on installation, please visit - http://support.microsoft.com/kb/834484/en-us