Having problems trying to install PsiWin 2.x? Be reassured that you're not alone.
The problem
This is one of the most common problems that I get asked about when people are trying to install PsiWin 2.3.3:
Q. When I try to install PsiWin 2.3.3 the installer from another program runs and not PsiWin -- or nothing runs at all. What is going on?!
The problem is mostly likely that you need to clear out your Windows Temp folders. For some reason, when trying to install PsiWin Windows gets confused easily if your Temp folders are not cleared out.
What are Temp folders?
Your Temporary (Temp) folders are locations where Windows keeps certain files and fragments of data that you are currently working on. Sometimes programs don't properly clear up after themselves, and they can leave fragments of your files in this folder.
Please note that these are not your actual files, these are copies of files or simply fragments of files that Windows has been using.
Installation applications frequently leave temp file debris in your temporary folders.
Windows XP / 2000
In Windows XP and 2000 there are two locations for temporary files:
C:\Windows\Temp
C:\Documents and Settings\<username>\Local Settings\Temp
The quickest way to navigate to this location is to open My Computer and in the address bar type:
Open each folder in turn in My Computer / Windows Explorer. Select all the files and folders (Ctrl+A) and delete them all. Then empty your Recycle Bin and reboot.
Note that in some cases you won't be able to delete all the files as some may still be in use by Windows. That's ok, just delete as many as you can.
Windows 95 / 98 / Me
In older version of Windows there is usually only one location for temporary files.
Open this folder in My Computer or Windows Explorer, select all the files and folders (Ctrl+A) and delete them all. Then empty your Recycle Bin and reboot.
Note that in some cases you won't be able to delete all the files as some may still be in use by Windows. That's ok, just delete as many as you can.
Still having bother? Use WinZip
If you are still having trouble then it might help you to know that the PsiWin installation file ('psiwin233_english.exe', for example) is simply a self-extracting file that will open in
One error message that some users have reported is that when they try
to uninstall PsiWin via the Add/Remove Programs window in Control Panel
they get the following window:
This is indicating that the Psion connection program is still running.
Right-click the Psion connection icon (it looks like
a straight line with a dot on each end) in the Notification Area (System
Tray) which you will find to the left of your clock.
If you are experiencing problems upgrading from an older
version of PsiWin to a newer version, or just general uninstallation
problems I recommend that you run this file.
The Add-in "Psion Sync Plugin" (C:\Program Files\Psion\Psiwin\pwolplug.dll) cannot be loaded and has been disabled by Outlook ... please uninstall the Add-in.
then deleting the extend.dat files may work for you. It appears that Outlook caches the add-ons in this file, which is automatically recreated the next time you start Outlook 2007.
Start > Run... (or Hold down Windows key and press R)
Type %appdata% and click OK. This takes you to C:\Documents and Settings\<YourUsername>\Local Settings\Application Data\
Navigate to C:\Documents and Settings\<YourUsername>\Local Settings\Application Data\Microsoft\Outlook
Delete the extend.dat file
Start Outlook
If you have more than one user account on Windows you may have to repeat this process for each of the user accounts. You may wish to use Windows Search (Start > Search) to locate all the