Installation Issue Informatica-Qlikview connector

[#1]

When we are trying to install the Qlikview Informatica 8 Connector Server, but displays this message: "Make sure Informatica 8.6.1 is installed on the system, installation will abort, please try again later". But we have already the installation of Informatica (v.8.6.1), what can be the issue in this point?

We have Windows 2008 Server Enterprise SP1 (64 bits), Intel Core i3 Processor.