First of all, what will make our software a success? The ratio between quality and price is what makes the software good or bad, you must see what the market offers towards you. View download.com for software in a similar way and how: Their price is based on yours? If you are more expensive then reduce the price or add more options.
Okay, your software has a good price, how can we introduce it? The first step is to create a presentation of it, you can create one that lasts for a few days or something that lasts forever but with limited operations. There are many software sites that allow you to download your presentation and so many will download it. To find them, just search for Google with "shareware", a part of the term popular with Bob Wallace, it refers to copymitted software that is shared on trial without charge and is somehow limited in length or activity. Depending on the type of software you have developed that you can create that only offers some useful features while most are only in full version, this will allow the testing software to stay on your potential computers' computers for a long time and in that way they will always be connected to you and maybe a day where there is an increased need to buy it.
The above is not the only way to introduce your software, you can also start a Google campaign and offer download promotion to the sales page, which is the site where you sell your product. You can optimize your sales page for a particular keyword or for a particular phrase, to learn how to do this; you can use many free guides in SEO online and found on Google with an "SEO Guide": SEO is an abbreviation of search engine optimization and Optimize your site will bring you more visitors and more sales.
Another powerful way to promote your software is to use affiliate networks as each affiliate for each visitor or customer they can bring, this is a way to promote your product to a virus and do not forget to mention the opportunity to join as an affiliate on the sales page or even within the software itself. Some networks charge for a fee while another subscription is free and you pay only a guarantee. Everyone if your product sells well will be well organized and more partners will introduce your software.
Everyone who said before shows how important your sales are and so it's very important to give it good graphics, attractive explanations, beautiful screenshots of your software and buttons for buying and downloading. The methods described before can be used at the same time and work in synergy to give you the best. With tools like Google Analytics, you can track them and find out who gives you the best results so you can also change your marketing efforts to achieve your goals. So start introducing your software, I wish you many sales. ..