First, you need to add IIS, and then you can start configuring FTP. The steps are as follows:
1, Control Panel → Add or Remove Programs → Add/Remove windows Components;
2. In the windows Component Wizard window that pops up, select "Application Server" and then click "Details";
3. Check "Internet Information Service (IIS)" in the pop-up application server window, and then click "Details";
4. Check "File Transfer Protocol (FTP) service" in the pop-up Internet information service window, and finally click OK to return to the windows component wizard window, and click Next to install the component.
If an error prompt window pops up halfway, saying what plug-in is missing, search windows online? Server? Download I386 of 2003 system, and select the plug-in in I386 folder according to the error prompt.