At this time we are not actively developing a version of Informant for Windows.

For our Windows users with Outlook we offer Informant Sync For Outlook, a "sync connector" that you can use connect Informant to Outlook and sync the calendar and task data between the two applications for more details see the following link

For our Informant customers who use Windows and may not use Outlook it is on our long term product development roadmap to bring a web based Informant to market that will enable Windows users to benefit from desktop access to Informant. There is no ETA on this as it is something that is on our long term plans meaning it will be more than a year out at this time.