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    <p>Based on the default custom action sequence, Windows Installer determines which files need to be installed/overwritten before removing any existing versions of software. Windows Installer uses the value of the REINSTALLMODE property to tell it how to make decisions about when to overwrite files. If REINSTALLMODE contains an "o", then it will only install files where the version is different or the file doesn't already exist; non-versioned files will only be installed if the Modified Date of the file is &lt;= the Created Date (i.e. the file is not modified). If the REINSTALLMODE contains an "a", it will always install the file, regardless of any version or date information attached to existing files. </p> <p>What is happening in your scenario is most likely the following:</p> <ol> <li>Windows Installer determines which files to install. It decides that some files don't need to be installed (possibly because they already exist and are of the same or newer versions as the ones in the MSI).</li> <li>The previous version of software is removed, including the files Windows Installer determined didn't need to be installed.</li> <li>Windows installer installs files for the new installation, but does not install files that it determined did not need to be installed.</li> </ol> <p>The end result is that a bunch of files are missing after upgrading the software. Setting REINSTALLMODE=amus instead of omus will likely fix your problem, but you should make sure you know how this affects the rest of your installation. If there are any files that you don't want to be overwritten, you will need to mark those components to "Never Overwrite".</p>
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    1. USKevin Kibler
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    1. COThanks for the additional info :)
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      1. USMatthew Savage
 

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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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