Software-Promoter 

Software-Promoter does two things for you: it processes all registration orders from your customers, maintains it, generates registration keys, sends emails and helps you to promote your software. There is big sites collection for promotion purposes.
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Easy Invoicing UK for MS Access - Demo 

Easy Invoicing is a Database program for Microsoft Windows and Microsoft Access 2000 or later. You can make and print smart, professional invoices, in minutes, on you PC. Ideal invoice software for small or home business.
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AnyBook Classic Standard - Publishers Business Kit 

AnyBook Professional is an award winning shareware program which is specifically designed for small & self-publishers. It prepares invoices, does billings, generates sales reports, has a contact manager, calculates royalties, and tracks inventory.
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