Cant unsinstall - runtime error in install :access violation

[Edos]

Hello,

We are using Installaware 9. We have the following problem with one of our customers.
Our product was installed and during web updated of new version the customer running on windows 7 got the following error message - runtime error in install :access violation. Windows is still reconizing the old version as installed but not opening it.
When trying to uninstall directlly from Control Panels we get the same error message - runtime error in install :access violation.

Are you familier with such a problem?
How can we force uninstall?

Thanks in advance.

[MichaelNesmith]

It would appear something corrupted the installer files on the system.

An easy solution would be to do a new build with a different revision code and have that automatically uninstall the old version for you.

[Edos]

Simple solution for us was to ask the customer to delete the installer folder and re-install.