virtual machine trial software / shareware for linux

YAFPC-Appliance is a CD-ROM image based on KNOPPIX technology and the PDF composer/printer/mailer YAFPC.
Any PC booted from this CD can act as a PDF print server and provide an unlimited number of network shared virtual PDF printers. The system requirements are low. System configuration can be done via a Web browser from any workstation in your network.
Virtual shared printers can be configured to apply letterheads, watermarks, and appendices to all printed documents. After printing, a document is sent to its owner by email, or can be accessed in a shared folder on the server. Deployment is very simple.
Main features:
- No installation required: The YAFPC-Appliance CD-ROM contains a complete Operating System that can be booted on every PC. Automatic hardware recognition and automatic installation of all required software components are done without any user interaction.
- No client installation required: Each time a client accesses a network shared printer from the YAFPC-Appliance PDF Server the first time, the required printer driver is installed automatically to the clients workstation.
- No user account management required: Each time a user accesses a network shared printer from the YAFPC-Appliance PDF Server the first time, a user account is created "on the fly" and a network shared "home folder" is provided to this user. The user can access this folder to obtain her/his printed PDF documents. Also an email account is created "on the fly". The PDF document is additionally sent to this email account.
- Unlimited number of network shared PDF Printers: The YAFPC-Appliance administrator can create an unlimited number of network shared PDF Printers via the easy to use Browser Interface for Administration. Each PDF Printer can be configured to apply page numbers, special letterheads, watermarks and appendixes to each printed document and encrypt the document for protection against manipulations.
- Unlimited number of different letterheads, watermarks and appendixes: The YAFPC-Appliance administrator can upload multiple files to the YAFPC-Appliance PDF Server to be assigned to each PDF Printer for composing documents.
- Easy creation of email aliases: For printed documents to be sent to the printing user, the users email address is automatically created "on the fly" from her/his username and the given domain name. In case the usernames dont match their email addresses in a network, the YAFPC-Appliance administrator can create an email alias for each user. Aliases are of the form "alice: a.smith@foo.bar".
- Low system requirements: A PC with a Pentium 500 MHz, 256MB RAM and a 1GB Harddrive, a bootable CD-ROM drive and a network interface can act as a YAFPC-Appliance PDF Server in a network with hundreds of users to print and mail their documents. So any PC out of Your "heap of scrap" will do it.
Version restrictions:
- 30-day test license
Enhancements:
- A new "Install to Disk" function was added.
- The system can run as a live CD, installed on a hard disk, or in a virtual machine now.
- The file naming option for virtual printers can be set up to suppress original file extensions in document titles.

SQLite3Professional is a plugin for REALBasic that gives you full low level access to sqlite 3 databases. Starting from RB2005, the sqlite3 engine is include in every version of REALbasic, but due to the way it is exposed to the end user, a lot of its power and its speed arent availables. SQLite3ProfessionalPlugin has been designed to take advantage of all the real speed and real power that the new sqlite3 engine can offer.

SQLite3ProfessionalPlugin is very different from the built-in REALbasic database engine, it doesnt have built-in Database and RecordSet classes (even if its easy to create a wrapper for these classes). It is a near 1 to 1 map to the sqlite3 C api, so you can have access to every sqlite3 routine, so for example, you can interact directly with the virtual machine or you can create your own sql functions, and much more. These are very powerful concepts that cannot be added to the current REALSQLDatabase plugin.

The audience for this plugin are professional database users, that, for example, can take advantage of the sqlite3 progress handler routine to give time to other threads or to update the REALbasic GUI while a complex sql operation is in place, or that can use the sqlite3 virtual machine to build a query system with zero delay time and near zero memory requirements even if millions of rows are returned from a query.

As a real world test, we have created an sqlite 3 database with 10 columns and 200,000 rows (database size is about 200MB), and we have execute a "SELECT * from test" query.