What is the best practice for calculating memory consumption for 32 bit Client Networking clients? We will look into running our client in terminal services and then I need to have an approximation about how much memory we might need?

Do I look into Task Manager of running clients or do I look into startup parameters etc?

11.6 right now, possibly 11.7 when this to be done. Whatever current Windows server OS that's current (Windows 2012?).