db custom installer failure on win9x and Me

[Tamim]

Hi all,
I've created a setup project for an application, including a custom action
database installer, how ever the code was taken from a microsoft article on
MSDN

Each time i try to install the application on windows 9x or Millenuim, i got
the following error:
Unable to create an instance of DBCustomAction.DBCustomAction installer
type. --> Exception has been thrown by the target of an invocation. -->
Format of the initialization string does not conform to specification
starting at index 57.

How ever, the installer worked on Win XP & NT, Is there some kind of problem
installing on win9x or Me???? Please help, and what does the exceptiion
means, by the way?

Thanks