If you are upgrading or uninstalling a version of Enterprise Server between 2.2.1.17909 and 2.2.1.18906, and are not running the SSH server provided as part of the Enterprise Server package, you may encounter an error while removing the existing Enterprise Server:

In this case, follow these steps to uninstall the old Enterprise Server:

Step 1 Locate the cached Enterprise Server installer package

To locate the cached installer package, download the msiinv from this link. When downloaded, place the msiinv.exe under C:\msiinv\ directory.

Open Command Prompt and execute the following command to generate a text file with a list of all installed applications:

> c:\msiinv\msiinv.exe -p > c:\msiinv\installed_apps.txt

Open this file with a text editor, locate the section starts with "Aspera Enterprise Server":

Aspera Enterprise Server
Product code: {C040AA04-ABDD-4F82-9BBF-76B4C088CEDC}
Product state: (5) Installed.
...
Version: 2.2.1.18906
...
Local package: C:\WINDOWS\Installer\9a8cc93.msi
...

First, locate the line "Version" and verify that the build number is between 17909 and 18906.

Second, locate the line "Local package" in preparation for Step 2.

Step 2 Locate and modify the cached installer package

Next, download orca, an installer modification tool, from this link.

When downloaded, double-click the installer, follow the instructions and select the Typical setup type.

Open Orca and select File > Open, enter the path of the cached installer from Step 1:

When opened, find the InstallExecuteSequence from the Tables column, right-click on "StopSSHD" from the Action list and click Drop Row. Click File from the Toolbar and click Save File. When finished, close orca.

Step 3 Remove the old Enterprise Server.

Remove the previous installation through Control Panel > Add/Remove Programs.