Knowledgebase: Enterprise
Hyperion Enterprise Uninstallation Error
Posted by David Irwin (Import) on 08 October 2010 04:02 PM

Applies to:

Hyperion Enterprise - Version: to - Release: 6.4 to 6.5
Information in this document applies to any platform.


When uninstalling Hyperion Enterprise by [Add or Remove Programs] in Control Panel, it gives [VerGetFileVersion API failed] error and fails to uninstall.


Possible Causes:
1.Lack of Heapi.dll in Hyperion Enterprise installed folder.
2.Hyperion Enterprise uninstallation file broke or parts of registry keys for Hyperion Enterprise broke.



1. Copy Heapi.dll from other machine to the problem machine, then uninstall the old version enterprise.


Delete the old version enterprise manually.
1. Delete the related registry keys: uninstall registry
a. Hyperion Enterprise:

b. Hyperion Common Logon:

c. Hyperion Enterprise Reporting Windows Client:

2. Backup the Hyperion Solutions folder, then delete the folder.
for example:
C:\Program Files\Hyperion Solutions
C:\Program Files\Hyperion Solutions_bak

3. Reboot the machine.
Postscript: if you use messenger server or application server, you also need to delete the service from registry by command: [sc delete]
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