When trying to install the latest version of Quest Web Parts version 5.5 from Quest Support onto a Web Front End Server it cannot detect the Central Admin Web Application
Title
Installing Quest Web Parts version 5.5 for SharePoint 2010Description
Resolution
You need to supply the customer the latest Quest Web Parts SharePoint.exe file which can be found here
ftp://wmuser:wmuser1@ftp.uk.quest.com/download/925330/Quest Web Parts for SharePoint.exe
, they need to download this file down onto the WFE server and carry out the install. After this completes they may have to deploy the solution manually to the Central Admin Web Application from within Central Admin by going to System Settings then clicking on Manage Farm Solutions and then deploy