I know which COM port it is, but my sotware (eCut, plugin for CorelDRAW) cannot open port (only usb printer). That's why I was asking about software which make USB printer from COM printer. I has also USB to RS232 Prolific adapter, but it still the same situation, it will not show as USB printer.
MZ SKEETER, thank you for the link, I looked to AccessPort137 and it looks promising. When I copy code from the file which plugin eCut create, and paste to AccessPort - it works and cutting!
slice&dice, thank you for link, I know this software, but it's hard to use. First of all it has not intuitive zooming by wheeling mouse (the other way round to all other programs) and it make some strange move after cutting - plotter head is going really fast to the end, make some strange moves, etc.
BTW, I get EasySIGN software with this plotter, but it's so old, that has usb key dongle, which has no driver above Windows XP
