UNESCO.ORG | The Organization | Education | Natural Sciences | Social & Human Sciences | Culture | Communication & Information


Information Processing Tools

WinISIS Download

Version 1.5 build 3

Thank you for requesting a copy of CDS/ISIS for Windows. In order to obtain the software, you may either contact your national distributor listed on:

or directly download the installation file:

Please note that link for download of the WinISIS will expire in 24 hours.

Quick troubleshooting guide:

"Cannot Run" or "Missing DLLs" messages

Depending from your Windows installation and/or version, you may get an error message reporting the file CTL3D.DLL (or CTL3DV2.DLL) as missing or a message saying that a "device attached to the system is not working properly".

In this case you do have use a DLL file located in \winisis\ctl3dv2

To make Winisis up and running you should copy CTL3D.DLL in the following directory:


Windows NT or 2000 users should copy that file in the corresponding system
directory (C:\WINNT)

NOTES FOR Windows NT, Windows 2000, WinXP USERS

Please note that Winisis needs a special property to be set in these environments. Proceed as follows:

  1. Drag the Winisis icon onto the desktop to create a shortcut.
  2. Click the right mouse button on the desktop Winisis icon.
  3. Select the tab "Shortcut" and set "Run in separate memory space". It is the option under the "Target" box.
  4. Click ok and always use the shortcut for running Winisis.

This will make Winisis stable under Windows NT and Windows 2000, WinXP.


In case Winisis has blocked, please call the TaskManager (using the CTRL-ALT-DEL keys combination) and then stop the process called NTVDM.EXE. Then you may restart Winisis.