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Search Server Express 2010:<br />
<br />
<a href="https://www.microsoft.com/enterprisesearch/en/us/search-server-express.aspx" rel="ugc">https://www.microsoft.com/enterprisesearch/en/us/search-server-express.aspx</a><br />
<br />
You can integrate it into SharePoint Foundation 2010 (Free) or use it standalone.<br />
<br />
You may need to install the Adobe iFilter for searching PDF's.<br />
<br />
<a href="http://www.sharepointrandy.com/2010/10/18/installing-and-configuring-the-adobe-pdf-ifilter-for-search-server-2010/#.UCqZkKFlSyE" rel="ugc">http://www.sharepointrandy.com/2010/10/18/installing-and-configuring-the-adobe-pdf-ifilter-for-search-server-2010/#.UCqZkKFlSyE</a>
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Search Server Express 2010:

https://www.microsoft.com/enterprisesearch/en/us/search-server-express.aspx [https://www.microsoft.com/enterprisesearch/en/us/search-server-express.aspx]

You can integrate it into SharePoint Foundation 2010 (Free) or use it standalone.

You may need to install the Adobe iFilter for searching PDF's.

http://www.sharepointrandy.com/2010/10/18/installing-and-configuring-the-adobe-pdf-ifilter-for-search-server-2010/#.UCqZkKFlSyE [http://www.sharepointrandy.com/2010/10/18/installing-and-configuring-the-adobe-pdf-ifilter-for-search-server-2010/#.UCqZkKFlSyE]

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I have been using dtSearch for many years:<br />
<a href="http://www.dtsearch.com/" rel="ugc">http://www.dtsearch.com/</a><br />
<br />
It is an excellent product with great technical support, and it can do exactly what you want, although it is fairly expensive. If you want to spend less money, X1 is a well-regarded product:<br />
<a href="http://www.x1.com/" rel="ugc">http://www.x1.com/</a><br />
<br />
But if it's within your budget for the project, go with dtSearch. Regards, Joe
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I have been using dtSearch for many years:
http://www.dtsearch.com/ [http://www.dtsearch.com/]

It is an excellent product with great technical support, and it can do exactly what you want, although it is fairly expensive. If you want to spend less money, X1 is a well-regarded product:
http://www.x1.com/ [http://www.x1.com/]

But if it's within your budget for the project, go with dtSearch. Regards, Joe

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I am researching a system that will search files for common words and bring them up in a search linking them all together. &nbsp;This can be a in-house or a Cloud based service. <br />
<br />
Example: &nbsp;I want to find all products we sell with Ingredient X in it. It searches the document database and give a result with all files with the product with Ingredient X.
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I am researching a system that will search files for common words and bring them up in a search linking them all together.  This can be a in-house or a Cloud based service. 

Example:  I want to find all products we sell with Ingredient X in it. It searches the document database and give a result with all files with the product with Ingredient X.

Document Management system / software

A Document Management System (DMS) is a system (both hardware and software) used to track, manage and store documents and reduce paper. Most are capable of keeping a record of the various versions created and modified by different users (history tracking). It is often viewed as a component of enterprise content management (ECM) systems and related to digital asset management, document imaging, workflow systems and records management systems.

Document Management

Content management (CM) is a set of processes and technologies that supports the collection, managing, and publishing of information in any form or medium. When stored and accessed via computers, this information may be more specifically referred to as digital content, or simply as content. Digital content may take the form of text (such as electronic documents), multimedia files (such as audio or video files), or any other file type that follows a content lifecycle requiring management.