Hmm, could you put this in simple english for an old guy, please?-OptimalDesigns
Sure.
We will use the technology matching what you want your users to get in their browser.
Any one of the following:
a) If it is a terminal/console window reflecting the DOSBox program: we use
Xtermjs (embedded terminal for web pages)
b) If it is a web page reflecting what the VB6 app emits. We use regular HTML.
c) If it is forwarding the VB6/DOSBox itself as shown on the server, there are multiple options.
It depends on what you want your users to interact with (Which choice from the above).
More on my idea. 2 Apps are free for anyone to use; the other 3 would be charged after say one week of free usage.
If either of 3 is charged, then ALL may be used under the umbrella.-OptimalDesigns
Okay, so this means a database for registered members is enabled.
When a member is registered but has not paid, he would only be able to access the 2 free apps.
When a member visits any of the 3 apps, he is invited to start a free trial of 7 days. The start date is saved.
At the end of the 7 days, he must checkout for $30 so he is granted 30 more days of access to ALL apps

The monthly charge/fee should be $30 as of today.-OptimalDesigns
Got it. The amount is configured via Paypal button's HTML. It can be edited/modified in the future.
A terminal running 24/7, how is this done?-OptimalDesigns
The Windows server runs it in the background.
The user connects to the HTTP service by means of the web browser.
After a certain timeout, the usage session is terminated but the terminal keeps running on the server.
Your offer sounds good to me.-OptimalDesigns
Wonderful! The sooner we start the better!
Please send the first $100 paypal to
publicdomainvic@gmail.com to begin development

It okay with me ... great idea 
-OptimalDesigns
Super! I'm glad to publish something like this here on DC

My birthday is this month so this is also special as the extra income adds-up as a birthday present for me & also helps my family

🤗
Thank you Phil.
From a most-grateful,
Vic