Software shared here is for Windows 64-bit, you can get more info from this below link:
Reason to choice 64-bit OS:
--->With 64-bit OS, you can utilize all system memory if you have 4 GB+ RAM.
--->64-bit OS and software have some extra layer of security.
--->64-bit can do better memory allocation.
--->64-bit is future.
Internet Explorer 9 (only for Vista & 7)
Internet Explorer 8 (for XP 64-bit)
Mozilla Firefox Nightly (not officially supported)
Adobe Flash Plugin 11.1 64-bit (For Internet Explorer 64-bit)
Adobe Flash Plugin 11.1 64-bit (For all other browsers else than IE)
JAVA Runtime Environment 7 Update 1 (64-bit)
7-Zip 9.20 64-bit
WinRAR 4.01 Final 64-bit
File Management Tool:
Speed Commander 14 (x64)
UltraMon 3.10 (64-bit - x64)
Speed Fan 4.45
Smart FTP (64-bit)