More Psion downloads, of my favourite Psion 3mx applications, can be found on the Psion Software page.
This version of PsiWin 1.1 is the updated Y2K-compliant version. It is designed to run under Windows 3.1, Windows for Workgroups 3.11, as well as Windows 95, 98, Me, NT, 2000, and XP.
Either download the full package, or each disk individually.
You can now download PsiWin 2.3.3 here. PsiWin is designed to run under Windows NT, 98, 98se, ME, 2000 and XP. It also runs successfully under Windows Vista and Windows 7 32-bit.
PsiWin 2.3.3 WILL NOT run under any 64-bit version of Windows.
You can also use Windows 7 XP Mode (Professional, Ultimate or Enterprise only, not Home Premium),
Before you install
Please make sure that your Windows TEMP folders are emptied before you install PsiWin 2.3.3, otherwise when you run the PsiWin installer another application's installer may run. For more details see the Installation problems page.
Some people have experienced problems installing or uninstalling PsiWin, including removing the My Psion icon from the Desktop.
This Registry Cleaner removes only the Registry entries that PsiWin makes.
I got it from Mike McConnell's well-resourced website.
Simply unzip the contents to the Desktop and right-click the .inf file and select Install. All PsiWin 2.x-related Registry entries will be removed. Then immediately re-boot.
User manuals for the following Psions are available for download in Adobe Acrobat PDF format: 3c (may also be of help to people looking for a 3a manual, or 3mx manual); 5mx (may be of help to Series 5 users); Revo, and Series 7.
These are now available for download from this website as a lot of people had reported having difficulty locating them on the Psion Teklogix website.
The official Psion 'emulators', which only run under MS-DOS. More information on the SIBO Emulators page.
Series 3 (Classic)
Example BATch files
Examples of a customizable BATch file to help run the emulators.
The OPL (Programming) Manual is available for free download in a number of formats (all downloads are zipped):
The OPL Manual from Psion is also available in PDF format arranged by chapter.
This version is dated 1997 and covers programming the Siena, Series 3 and Series 5 machines, though no doubt much will also apply to the Workabout, Revo, Series 7 and NetPad.
View: You will require Adobe Acrobat (Reader) 4.0+, or the newer Adobe Reader (which is free) installed in order to view these files in your browser, and indeed on your computer!
Download: The whole manual can be downloaded as one zipped file (see above).
Clicking each link, below, will open the file in your browser if you have an Acrobat plug-in.
To simply download each chapter, right-click a link below and select "Save Target As..." to download them without opening them in your browser.
The OPL Manual is also available on-line (in HTML format) at