Download whatsapp for pc - Computers & Internet

If you mean App is short for Application which is a program
Certain operating systems and other programs such as emails and video's need other software to be able to run.
Here are some that will help you all are free.

http://100-downloads.com/rss_download.php?p=219
Extract and open RAR compressed files on PC.


http://download.cnet.com/k-lite-codec-pack/3000-13632_4-64246.html
Get a collection of VFW or ACM codecs, Directshow filters for your media files


http://download.cnet.com/microsoft-directx-redistributable-june/3000-2121_4-10176490.html
Microsoft DirectX Redistributable


http://adobe-flash-player-non-ie.soft32.com/
11.4.402.278Free
Adobe Flash Player is a cross-platform browser-based application runtime.


http://www.zipgenius.com/index.php?id=33
ZipGenius can handle more than .zip or .rar file
20 compressed archive types.



http://download.cnet.com/pdf-reader-for-windows/3000-18497_4-75012479.html?tag=mncol;1
Open, view, and convert Adobe PDF files.



http://download.cnet.com/openoffice-org/3000-18483_4-10263109.html
Take an open-source approach to office productivity.