Upgrading an Administrative Install

You can upgrade an administrative install with an EBF or minor version release downloaded from the Web. You cannot upgrade between major versions. Each major version (12.x, 15.x, etc.) must be installed as a new administrative install in its own directory.

The procedure is different for these two types of upgrade:

EBFs - Unzip the zip file delivered with the msi over the existing administrative install.
Minor releases - Run the upgrade executable with the following syntax:
```
powerdesignerver_upd.exe /a
```