Dennis,
Why not just use a plain old Editbox? You can either just set .Value = .Value + "now I'm doing this..." or bind it to a memo field that you concatenate to.
You could also use a browser window that is navigated to your text log file.
>I am building a server app and I want to have a area in my main form wherein I can output the status of each processed client request ( 'Processing request #24985348... Done.' ), like am 'log window'.
>
>I tried to put a Richtext control (so I can save log as a text file) but it unnecessarily uses up server memory.