Question: I am trying to learn how to make a program in C++ that when you run it, you can tell it to run and specify options all in one line. For example you can do `ipconfig /all` in CMD and it runs ipconfig.exe with the option `/all`. Another example would be `shutdown -f` which tells the computer to shutdown with the option `-f`. For example, I want to make a program that downloads something from a URL and call it for example downloader. From command line one would type `downloader <http://filehere.com> /h` which would download the file with the /h option which I would define its property in my program. I don't want code or guides on how to make a downloader I am just trying to learn how to specify options like the /h. Are there any guides out there that you know of and could post or any sample code? I have tried searching for guides, but I think I just don't know what this operation is actually called. Thank you.

Answer: 
No, I don't think it's possible.

Userforms are merely containers to hold your ActiveX controls. Spreadsheets are also ActiveX control containers, so I'm not sure what the benefit of having a container in a container would be.

You could easily color a group of cells to look like a userform and place ActiveX controls within that range. That would simulate a userform embedded on a spreadsheet. You'd be missing userform level events and probably a few other things. But if you wanted those things, you'd probably just use a userform.

If there's something you want to do that I'm missing, let me know.
You could place MyForm.Show code on the Workbook.Open event to launch the form whenever you open the file... that I've done. You can even choose where to place the form.

Your wish, if possible (I'm pretty positive it's not), could trigger concurrent VB code: e.g. auto-calculate of cells, and the form code. That's an issue because XL is single VBA thread, hence it's impossible to have two things happening. Either the form is showing and it's code is running, or XL application is running and doing cells/graphs/etc stuff.