An official MSI installer is now available (beta atm)
https://winscp.net/eng/docs/installation#msi

With Office 2007, MS seems to be moving away from their own MSI standard. But nonetheless I might be able to answer MSI-related questions if you have any.

Hi,

i would like to vote on this

Added to TODO list.

The application needs to be distributed as an MSI package instead of the current installer. MSI's deliver a standard way of deploying and managing applications in Windows OSs.