This configuration variable has meaning only on Windows systems. Under Windows, unboxed entry fields include a small amount of extra space so the cursor can be seen when it is placed after the last character position. This space can be a problem if you want to convert a program and align screen items. When WIN3_EF_PADDED is set to 0 (off, false, no), this extra space does not appear in unboxed entry fields, and the entry field has only enough space for its character positions. When this variable is set to the default 1 (on, true, yes), the extra space appears in unboxed entry fields.