CodeBank is tree based (XML) personal information database.

It allows you to maintain a hierachical database of textual information like:

programming code snippets
notes
links
quotes
SQL queries
+ whatever you like you name it
CodeBank is designed to work with relatively large amount of records. I have successfuly tested it with 20000+ records.

Unlike similar programs CodeBank is fully portable and can be carried on removable media. The compression feature
helps in that matter too. The encryption feature provides high grade (256bit AES) of security for sensitive information.
The internal search engine can search for words, phrases and regular expressions.
CodeBank also allows you to comment and tag your own snippets/records so you can find them easier later.

The initial reason I developped this application was to help with the training of a programming team for programming competitions (ACM, TopCoder etc.)

remembers the exact state you left it
Great "Search Engine" for the database
syntax highlightning in C/C++, Object Pascal, Java, XML, Visual Basic, VBScript, JavaScript, CSS, HTML, PHP, Perl, Python, SQL
Drag & Drop
Unlimited database size
Export/Import between databases
zip Compression
AES Encryption