A resource file is an ASCII file. By convention, resource files have an
.rc extension.
The easiest way to build a resource file is to use Microsoft tools
such as imagedit.exe to build bitmaps, icons and cursors and
dlgedit.exe to build dialogs.
You can always build an .rc file yourself by writing a
resource script.
It’s not our objective to explain how to write a resource file. A complete description of the resource script language can be found in the Microsoft documentation.