Thanks DLee65. Just to clarify all the points that you have touched upon. I had the condition put for both the feature and the component as i was not sure which is the right place. I have changed it to the Feature after your recommendation and have set the level to 1. The value that i read from the config file can be one of two values say, ONE and TWO. If (property=ONE) install some features, If(property=TWO), install some other features is what i am looking for. The INSTALLLEVEL property in the log is set to 100. I had initially not associated any component to the features, but now i have done that. Now i see that nothing is getting installed in the Program Files directory, it is probably because the condition are not evaluated correctly... why have you used ~= in your example? Is that same as == in C#? I am setting the property before the CostFinalize and so i am good there. How can i figure out if the condition that i am including is actually being evaluated? And how can i know what is the value of the property that i am using in the condition when the condition is being executed? ... View more