To translate a program to your native language you need to edit the file program.lng.
This file is divided into sections:

Info section - it looks like this:

[Info]
Lang Name=English
Lang Code=1033
Base Language=
Font Face=Tahoma
Charset=1
Size=8
RTL reading order=0
Help name=english.chm
Author=Ixen Gerthannes
Version=1.26

Field	Description
Lang name	the name of your language.
Lang code	the language ID of your language.
Base language	the name of the other language file that will be used if there are some missing strings in your file. You would probably put here 'english.lng'.
Font Face	Name of the font that will be used to display dialog boxes. The standard font for dialog boxes is 'Tahoma' - change it when the standard font does not properly display the text in your language.
Charset	charset code of the font you are using
Size	Point size of the font
RTL reading order	specifies if the language should be read in right-to-left (some Arabic languages) order or left-to right (most of the European languages).
Author	the name of the person that has translated this file
Version	version of this translation file - it should be the version of program for which the file has been prepared.

Menus, dialog boxes and string table - all of them are in the form of:
```
[135]
32774=Time critical
32775=Highest
32776=Above normal
32777=Normal
32778=Below normal
```
The number in square brackets contains the identifier of the main resource. The '[0]' section is the one that contains the string table. The strings are in the form 'id=text'. The id is either control id (in the dialog boxes) or menu item id (in menus) or the string id (in the string table).

When translating the menus make sure:
- that you change the ampersands chars ('&') in the way that in the each menu there are not the same two combinations of ampersand and the letter forward to it. (ie. the shouldn't be '&Exit' and 'Chang&e' strings in one menu because the '&' sign precedes two times the 'e' letter.
When translating the dialog boxes make sure:
- that you leave the spaces ' ' one the beginning and at the end of a string if there were any in the source translation. They are needed by the program to properly display some things.
When translating the string table make sure:
- that you do not change the order of the formatting strings (they begins with the '%' sign - ie. %s, %lu, ...) nor delete them. It could cause the program to work unstable or to crash.
- that you leave the space characters at the beginning and at the end of the line if there are any (just liku in dialog boxes).
- that you properly modify the strings - there are some character pairs that has a special meaning (they are translated before showing the text in program) - '\t' is translated to a tab, '\r' to a carriage-return and '\n' to new-line.

And do not forget to change the file program.lng to something like arabic.lng or russian.lng so anybody would know what language it is.