Collect the installation logs from the %TEMP% folder on the server in which you're trying to install the product on. They'll start with MSI and then a number and .log
In this case, the error looked like the following:
Error 1720. There is a problem with this Windows Installer package. A script required for this install to complete could not be run. Contact your support personnel or package vendor. Custom action Rename_Dell_DIR script error -2146828218, Microsoft VBScript runtime error: Permission denied Line 21, Column 2,
=== Logging stopped: 1/14/2008 15:56:30 ===
In this case, the installation wasn't able to rename the existing Dell folder to perform the installation.
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