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Windows VistaPsiWin 2.3.3 works with Windows 7

PsiWin 2.3.3 works successfully with the 32-bit version of Windows 7. I've used it with both a COM port and a USB-to-serial adapter.

In order to use the 64-bit version of Windows 7 you'll need to use a virtual machine such as XP Mode for Windows 7 Professional or Ultimate edition.


After about 9 years of supplying hundreds of SDK CD-ROMs to the Psion community I am no longer selling CD-ROMs.

Downloads now available

You can now download the SDKs from the downloads page.

However, if you are really having trouble locating or downloading the Symbian v.5 / EPOC R5 software development kits (SDKs) drop me an email and I may have one or two CDs still kicking around.


PsiWin 1.1 PsiWin 2.3.3 Psi-Sync for MS Outlook

PsiWin 1.1

Connect your SIBO machine to Windows.

PsiWin 2.3.3

Connect all Psion models (SIBO and EPOC) to your PC.


Syncronize your SIBO machine with MS Outlook.


Psion Emulators

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There are so-called 'emulators' available for the Psion WorkAbout, Series 3 Classic, 3a, Series 5, Revo and Series 7.

The SIBO emulators run under MS-DOS.

The EPOC/Symbian emulators come as part of the Software Development Kits (SDKS).

You can also order all the SIBO and EPOC emulators and SDKs on CD-ROM.




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Programming your Psion EPOCProgramming

Want to start writing programs on your SIBO machine?

Find out about programming on the Psion SIBO and Psion EPOC platforms.

These sections gives you no more than a few useful pointers in the right direction.