Special instructions are required for installing V12 SP1 onto Windows 8 and Windows Server 2012

Date: 11 July 2013
Product/Release: LANSA for Web - V12 SP1
Abstract: IIS Plugin issues when installing LANSA for Web on Windows 8 and Windows Server 2012
Submitted By: LANSA Technical Support


The support status of Windows 8 and Windows 2012 for V12 SP1 are as per the V12 supported platforms document. In particular, special instructions are required for development installations to cater for UAC changes and IIS changes in these operating systems.

For UAC:
The V12 SP1 special install instructions require UAC to be turned off in order to complete the V12 SP1 install. The UAC should be enabled again after the install completes as it may be needed by metro applications.

There is an instructions document available from your local LANSA support group.

For IIS:
There are potential issues installing the IIS (Internet Information Services) Plugin from the V12SP1 DVD on Windows 8 or Windows Server 2012 machines. Windows 8 and Windows Server 2012 are shipped with IIS8. There have been some changes in the registry structure by Microsoft in relation to this. Therefore you may get the following message if you have chosen to install any of these features:

  • LANSA for Web [IIS Plug-in, Images]
  • Integrator [JSM Server, JSM Proxy]

Warning Message

Even though the user is able to proceed with the install when they press OK and the IIS plug-in and images folder gets installed, the IIS will not get configured to use it. Hence, LANSA for Web and/or JSMDirect will not work.


You will need to ensure that the ASP.NET x.x features are turned on in the Windows Features.
This can be found under World Wide Web Services which is under Internet Information Services.

Turning on Windows 8 Features

Once this is saved, you will be able to run your V12 SP1 LANSA for Web installs on Windows 8 and Windows Server 2012.