DWF 2 DWG converter
DWF Importer(a. k. a. DWG to DWF Converter) is An AutoCAD Addin let you import dwf file into AutoCAD. It supports AutoCAD 2005, 2004, 2002, 2000(i) and R14. Features highlight:Supports the new DWF v6.
http://www.autodwg.com/dwf_dwg_converter/dwfin.exe - 3Mb - Download - Screenshot

AutoDWG PDFin PDF to DWG Converter
PDF to DWG Converter, an AutoCAD Addin help you import PDF file into AutoCAD. It supports AutoCAD 2006, 2005, 2004, 2002, 2000/i and R14. Features:Accepts single page or multipage PDF input, convert PDF file into native dwg file.
http://www.softspider.net/download/pdf2dwg-sa.EXE - 3Mb - Download - Screenshot

AutoDWG DWF to DWG Converter
DWF Importer(a. k. a. DWG to DWF Converter) is An AutoCAD Addin let you import dwf file into AutoCAD. It supports AutoCAD 2005, 2004, 2002, 2000(i) and R14. Features highlight:Supports the new DWF v6.
http://www.softspider.net/download/dwfin.exe - 3Mb - Download - Screenshot

DWFIn -- DWF to DWG Converter
DWF Importer(a. k. a. DWF to DWG Converter) is An AutoCAD Addin let you import dwf file into AutoCAD. It supports AutoCAD 2005, 2004, 2002, 2000(i) and R14. Features highlight:Supports the new DWF v6.
http://www.autodwg.com/dwf_dwg_converter/dwfin.exe - 3Mb - Download - Screenshot

DWF to DWG importer
DWF Importer(a. k. a. DWG to DWF Converter) is An AutoCAD Addin let you import dwf file into AutoCAD. It supports AutoCAD 2006, 2005, 2004, 2002, 2000(i) and R14. Features highlight:Supports the new DWF v6.
http://www.autodwg.com/dwf_dwg_converter/dwfin.exe - 3Mb - Download - Screenshot

Excel Sheet Navigation & Management Software
Copy, open, move, rename, delete, swap, and switch between worksheets in all open workbooks quickly. This Addin loads into Excel for convenient management of your sheets. Good if you have many worksheets or many workbooks to keep track of.
http://www.sobolsoft.com/excelnav/download/setup.exe - 394Kb - Download - Screenshot

Excel Absolute Relative Reference Change Software
Change formula references from absolute to relative or relative to absolute. Address changes are made by selection, sheet, or entire workbook. This Excel Addin is great if you are moving, copying and pasting cells.
http://www.sobolsoft.com/excelabs/download/setup.exe - 419Kb - Download - Screenshot

Excel to Image (GIF) Export & Convert Software
Quickly export selected Excel cells to an image file. This addin will also automatically export worksheet areas that contain data to an image file.
http://www.sobolsoft.com/excelimage/download/setup.exe - 427Kb - Download - Screenshot

FAB SMS Addin for Microsoft Outlook
Need to keep in touch with your customers, staff or colleagues? Then text messaging is an excellent medium to deliver your message. Seemlessly integrated with Microsoft's Outlook ®; this Add-in allows you to text your message directly from your favourite desktop messaging client. ... Text Messaging just got a whole lot easier! ... By utilising your contacts, distribution lists and address books to resolve mobile numbers, just type the name of the recipient, type your message and click send.
http://www.fabit.com/mobile/sms/setup.exe - 4Mb - Download - Screenshot

Documentation Helper
Documentation Helper is a Visual C++ Addin which aids documentation of C/C++/IDL/ODL files in terms of documenting the following: * Header files - will document and create header comments for these, including generating appropriate sentinel #defines * Source files - can create header comments... * Functions including parameters and exception specifications, if any. ... * IDL/ODL files - can create header comments for these.
http://www.twaddlesoftware.com/download/CmtMgrX86W32.exe - 323Kb - Download - Screenshot