To use YMODEM, click Edit → Preference → Transfer in your Z and I Emulator for Windows session. The Transfer Preferences window appears. Select the YMODEM or YMODEMG protocol, and optionally click on the tab for the selected modem protocol to define the Transfer Type or to change advanced settings.

When receiving a file, you cannot select the personal computer file name, but you can change the default transfer type, the drive, and the directory, if necessary.