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But just to clarify, note that Speedie's suggestion worked for pasting the seed and/or password into the text entry fields of the wallet, but "normal" copy and pasting (either ctrl-v or right click/paste) still do not work.
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The reason ctrl-c/ctrl-v doesn't work in command prompt is due to the fact that ctrl-c is actually used as a command when using a CLI. CTRL-C is "break" in DOS and this is not a limitation of the wallet software but a limitation of command prompt itself. In most Linux distributions right clicking on highlighted text is interpreted as copy and you can right click to paste. Windows just doesn't do that in my experience, you have to right click on the title and select mark, go to edit-> copy/paste.
edit : the "break" command is used to kill whatever process is running so it will essentially close whatever program you have open/running in DOS.
Part of this is correct. Yes, ctrl-c is the break command in DOS/CMD but it will, indeed, copy text to the clipboard if you highlight the text with the mouse first. That said, the issue here isn't with copying text from the wallet client, rather, it is pasting text into it.
And FWIW, I have no problem pasting my password into any of the other DOS/CMD wallet clients I run (including the old DERO client) so this issue is peculiar to the alpha wallet client.