I have uninstalled Data Migration Assistant V6.1(2) as I require ver 6.0(1A) installed on my Call manager Publisher.
I removed DMA from control panel add/remove programs and re-booted the server as per the documentation.
DMA V6.0(1A) fails to install as the server reports that a newer version of DMA is installed.
No DMA exists within Program Files. No Informix services are present or running.
Any ideas on a resolution would be appreciated.
I had the same problem.
Start regedit and look here:
You should be able to find an entry for DMA, delete this key and try to start the installer again.