That's easy enough. When you build it, it creates a .dll file. Just give people a copy of this file and tell them to put it in the CC3+ installation directory (Just make sure you build it in Visual Studio using the Release profile and not the Debug one). I am pretty sure people won't need to install any C++ runtimes.

It depends a bit on the exact quality you feel you need. Generally, I try to see if I can get at least 300 dpi. Even though printers today typically can go higher than that, 300 usually guarantees a good image.

However, 4x4 feet is 48x48 inches, resulting in 14400x14400 resolution, which is more that you can export in a single operation from CC3+, which gives you two options:

1) Go for 200 dpi resolution. It should still give you a resolution I would consider good enough. This means you need to export an image of 9600x9600 from CC3+ which is doable as long as you leave anti-aliasing off

2) Export the image in multiple parts, and stitch it together. When exporting from CC3+, if you use the rectangular section option when you pick export file types, you can export one and one section. And as long as you use snaps or other options for precision, you can easily make 4 precise equal-sized quadrants and stitch them together. There's also an annual issue that deals with this.

Unfortunately, there isn't a selector for select by sheet, but you can select by layer by using SELBYL.

Unfortunately, that option is not straight forward when used in drawing tools, because when you select by layer, you select everything on that layer, including previously drawn entities.

I guess the best option to handle that is to have the drawing tools set up to draw on a temporary layer that is kept empty, and then you can select the entities just placed on it, do the required manipulation, and then finish off with a Change layer (CHANGEL) command to move everything to the real layer.

Unfortunately, no. You'll have to use polys for everything you need aligned fills with.

There are a couple of things you can change. For example, you can get larger toolbar icons by clicking the :TOOLSICON: button, and you can change the size of the symbol display by clicking the options button on top of the symbol catalog.

The rest of the GUI is set up using standard Windows sizes, and follows whatever scaling setting you set in Windows. (With some exceptions, like the text size in the blue info window.

Interesting. I don't know exactly when CC2 (The first Windows version) arrived, but the earliest ads I could find were from 1997, several years earlier. Do you remember why you went for the DOS version at that time?