OpenOffice Portable

The renowned office suite, in portable version

Easy Flyer Creator

Edit and print your own handouts very easily

Scientific Word

Professional editor for technical and scientific texts

FreeOffice

Alternative office suite to Microsoft Office

SAP Crystal Reports Viewer

RPT report viewer

Paper Stacks

Manage to organize your printed documents

Gnumeric

A completely open source spreadsheet

LibreOffice Portable

The portable version of one of the best free office suites

OfficeSuite

Free and complete office suite

Final Draft

The best tool to write movie scripts

Kingsoft Office

Lightweight alternative to Microsoft Office

AbiWord

Great lightweigh and compatible alternative to Microsoft Word

Business-in-a-Box

Get hold of any professional document

Microsoft Office Compatibility Pack

Open OpenXML files in older versions of Office

WPS Office

Practical and functional office suite

Total HTML Converter

Convert HTML files to more usual formats

Zimbra Desktop

Manage all your accounts from the same application

Inky

Receive all your emails in a single client

Thunderbird Portable

Use this email manager on any PC with a USB port

Stellar Converter for OST

Convert your Outlook emails to PST format

Mailspring

Mail client to boost user productivity

GApp

Program to access Gmaul and Google Calendar

Mail Bomber

One of the best massive email delivery programs

Free Email Extractor

Easily gather email addresses

The Bat!

A classic amongst the email managers

Spark

Complete mail client compatible with different services

DreamMail

Customize your emails with templates

Outlook Connector

Use your Hotmail accounts straight from Outlook

Mail, Calendar, and People

Plan your day and keep in touch

Yahoo Mail

Access to your Yahoo email account

Windows Live Mail

Microsoft's multi-account email client