How To Change 'Display Icon' in General Information dynamically

Hi,

I am creating MSI setup for my application using Installsheild. I have both 64 and 32 bit setup in same installsheild project. Now i need to change 'Display Icon' during build by checking the type of bit its building. In script I tried to set the 'Display Icon' but I was not able to get the correct property Name for it.

can anyone help me on this?

-Ram