Islamic & Arabic Software
Operating Programs
Win 98 Arabic Enabled
Word Processing

Word 97 Arabic 
It also has interchangeable Arabic &  English Menus

Word 2000 Arabic & english

 
Shariah
Maktabah Alfiyyah Lis-Sunna-tien-Nabawiyyah
 This CD has a thousand works of hadith which can be fully read and searched through a variety of criteria. An excellent CD to find the sources of ahadith. The ahadith can be copied to a word processor

Maktabatul Fiqh wa Usul
 The last version that I seen was (1.5). 

Maktabatut Tafseer wa Ulum-il-Quran

Ihraabul Quraan
Other
Fonts
 A variety of CDs are available for Arabic Fonts. The MCS range of fonts are common and some can be found on the net as well