Welcome to Tattam Software Enterprises Pty Ltd.

Tattam Software Enterprises Pty Ltd is a small company operating from quiet Hobart in Australia.

Our company builds and supports a range of Internet and development software including TCP/IP drivers and a range of other operating systems software. 

Currently available is a DOS TCP/IP driver conforming to the DOS TCP ABI specification and now includes support for IPv6.

Under development are range of operating system tools including a 64 bit Pascal compiler tool chain for Windows64® application and device driver development, alternative Windows TCP/IP drivers and CPU emulation tools for development of embedded operating system components (IA32 and AMD64). See news for more detail.

The brains behind Tattam Software Enterprises is Managing Director, Peter Tattam, author of the popular Trumpet Winsock and Trumpet Newsreader. 


Trumpet Winsock Donations

As a result of some recent discussion about Trumpet Winsock and its use during the early 1990s, a group of users at Hacker News have decided to donate to Peter Tattam in appreciation for their use of Trumpet Winsock during the early years of the Internet.  

As a gesture of good will, Peter Tattam, the sole copyright owner of Trumpet Winsock, has also issued an amnesty on any copyright infringement by all users (individual and corporate) of Trumpet Winsock indefinitely for use prior to Jan 2011.  He does however reserve all other rights in the copyright of Trumpet Winsock.  Please note that Trumpet Winsock is still available for sale and is NOT free - should you wish to continue to use it, you should order a registration key from us.  Please send your order to This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Tattam Software Enterprises Pty Ltd (owned by Peter Tattam) has the sole authorization to collect these donations/gifts on behalf of Peter Tattam via the paypal account This e-mail address is being protected from spambots. You need JavaScript enabled to view it .  All funds raised will be directed towards Peter's research and development of Internet and operating system projects.

You can read more about the donation drive at http://news.ycombinator.com/item?id=2282875.

If you wish to join in and also make a donation, head on over to http://thanksfortrumpetwinsock.com, a site operated by Jacques Chester who has kindly led the drive.

Others sites have also joined in, including one by Daryl Hatton, CEO of FundRazr at http://bit.ly/fDzVOF

You can also send your token of appreciation directly to  This e-mail address is being protected from spambots. You need JavaScript enabled to view it . Due to PayPal account limitations, we are only able to accept payments, not donations.  For taxation and regulatory reasons, these payments will be treated as post-payment for previously unpaid use of Trumpet Winsock.


Trumpet Software Intellectual Property Acquired 

In Feb of 2008, the Intellectual Property of the Trumpet group of companies (including Trumpet Software International Pty Ltd), was transferred to Peter Tattam, owner of Tattam Software Enterprises Pty Ltd.  As a result of the transfer, Tattam Software Enterprises is now the principal distributor and maintainer of the Trumpet suite of software products.

Some of the products on offer will be Trumpet Winsock, Trumpet Firesock, Trumpet Fanfare and PetrOS®.

Return to this site soon as more information becomes available.


ClassiOS Alpha Release

For those patient folks who want to kick the tyres on classios, it’s finally here.  Note this is a 0.001 release, just to prove that it exists and boot a kernel.  To download or get more information go here.