I have an installscript MSI project that previously installed .net 3.5. I need to update this to 4.0, but am getting the impression that I cannot do this with anything below Installshield 2010. Is that correct??
There is an exapansion pack for IS2010 that includes .NET 4.0. You should be able to pull pieces of it into your 2009 environment. I've done this and it works; just don't expect official support.
