I am the MailStream Plus Product Manager and we have had some preliminary discussion on supporting Dispatcher 4 on Windows 7 and are still considering the plans. I believe the other products (CODE1 Plus and Finalist) are in the same situation..
I would like to understand more of how you are using Dispatcher 4 for MailStream Plus. Would you provide me some additional insight to how you are using Dispatcher 4 and the number of people using Dispatcher 4. Once I start analyzing the information I will most likely schedule a quick call with you to discuss.
Our organization is purging Windows XP in favor of Windows 7 as well. Our network administrator has decreed that we are to have all XP operating systems replaced with Windows 7 by April of 2012. We are therefore placed in a difficult position if Dispatcher 4 is not yet Windows 7 compatible.
Considering Windows 7's October 2009 release and this being the obvious direction regarding the OS (not to mention the Windows 8 release looming in the near future), it seems that software providers should be making a concentrated effort to migrate their applications to what is becoming an increasingly prevalent standard in operating systems.
A timeframe would be very helpful so that customers can align expectations.
I have been running Dispatcher4 on Windows 7 for the past year with no problems. I use MailStream Plus and other modules that run under D4. It is installed as a 32-bit app so it's under C:\Program Files (x86). Please advise if you have attempted install to see if it works in your environment. Dispatcher4 is not a native 64-bit app.