Dec. 5th 2011 - Version 1.2.0 Released, read more about it here

The HSS Database is an object oriented database management system (OODB or ODBMS) for Microsoft .NET, Silverlight and Windows Phone 7. HSS Database gives developers the ability to store and retrieve objects from their applications with extremely high speeds compared to other solutions, and with a small footprint (~100KB).

Buy it now - to get the full suite ( .NET, Silverlight and Windows Phone 7 ) all three at one LOW PRICE for use in your current or next application. HSS Database is the most cost effective solution for object storage, along with ease of use and implementation. If you have comments, questions or an idea for improvement, please contact us or post a comment on our forum.

Also you can follow along in our series of blog posts about the HSS Database, beginning with the HSS Database: Introduction

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Major features and functionality

• Supports all types including TimeSpan, Guid and Nullable<T> where T is also a supported type.
• Store any class object without requiring a base class or interface
• Automatic object schema refactoring
• Support for AES, password encryption
• Compact binary serialization (must faster and smaller file size compared to Xml, JSON and others)
• Built in caching, making repeated read/write operations extremely fast
• Only two files per stored type, one for indexing and another for the data making it easy to relocate your data
• Primary Keys Supported: Int32, Int64 and Guid (no additional OID required)
• Primary Keys can optionally AutoIncrement to support stand alone versus synchronized storage
• Supports data version tracking and truncating
• Built in support for Isolated Storage (SL4 and WP7)
• Built in support for Local File System (SL4 OOB and .NET)
• Support to request an increase of Isolated Storage Quota (Silverlight Only)
• Small library footprint (.NET-91KB, SL4-97KB and WP7-115KB)
• Simple API, and very easy to use!
• Click to see list of supported types:
  • Boolean
  • Byte
  • Char
  • DateTime
  • Decimal
  • Double
  • Enum
  • Int16
  • Int32
  • Int64
  • SByte
  • Single
  • String
  • UInt16
  • Unin32
  • UInt64
  • Nullable<T>
  • Timespan
  • Guid

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Licensing

HSS Database is runtime Royalty Free, which means you can build as many applications as you want and distribute them without paying any additional royalties, including free support and upgrades for 1 year from date of purchase.

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Purchasing

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Downloads

Download the free, full functioning 90 day trial here:  hssdb-trial.msi

For the complete Developer Reference and API Documentation, download one of the following:
Silverlight Reference     .NET Reference      Windows Phone 7 Reference

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Performance Testing

As can be seen from the chart below, the HSS Database is extremely fast. We measured the speed to serialize 2K (10K and 100K) Contact records, deserialize them, then deserialize a subset of records based on a linq query to find certain records with a first name starting with "H"; which found 77 of the 2,000 records in just 31ms:

Note: all test results above where done cold, meaning before any data is cached. Results may vary depending on hardware, disk drive and processor speeds.

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Code Samples