Files that need to be changed:

For the remaining dialogs, you can use DLGEDIT.EXE, the IBM dialog editor from the Developer's Toolkit, to change the dialogs. (This will not affect the .RC file.) For this, you will need to create the .RES file first. This is done by MAKE.CMD; alternatively, you can start RC.EXE with the "-r" option, which creates a .RES instead of linking the resources to an executable.

If you then open the .RES file with the dialog editor, you can choose include/dlgids.h as an include file so that all the numerical ID's have a more meaningful name.

When you then save the file, the .RES and .DLG files will be recreated by DLGEDIT. The .RC file remains untouched though.

The dialog editor has a helpful "Translate mode" in its "Options" menu which disables a lot of menu items so you don't accidentally change dlg ID's or other important stuff.

I don't know if you can use the URE editor also, I have not tried that.