I only added the main program of Yitian. The main program alone takes up more than 80K. A print driver takes up 30K. The input method can use extended memory, so it actually takes up not much main memory (the upper memory is less than 8K, which can be tolerated). The above two programs together use about 120K of main memory space. Plus the necessary network card driver for logging in to NetWare (lsl, ipxodi.netx, D-Link driver, etc., totaling four, about 120K of main memory space). The above necessary programs together are as much as 240K. My main memory is 640K + 140K, which is 780K. In this way, the available space is only less than 540K. It's a headache!
If using CCDOS (only takes up more than 27K of upper memory), there is 620K of basic memory available...
Thanks!