Tiff Server Trouble Shooting Guide

Tiff Server Trouble Shooting Guide

This blog highlights and addresses typical cases when customers install
Tiff Server.

1. When running Tiff Server for the first time you receive the following







to resolve this issue follow the steps below:

  • Open IIS.
  • From the “connections” pane on the left hand side select “Application Pools”.
  • From the “Applications pools” pane highlight the relevant Pool from the “Actions” pane, select “Advance Settings”.
  • In the “Advance settings” window, in the general tab, you will see an entry for “Enable 32-bit Applications” this should be set to “true”.
  • Restart IIS.

2. You may also receive the following message when running Tiff Server
for the first time.










This is a symptom of Tiff Server being installed with a user who does

not have sufficient privileges, in order to resolve this follow the steps

  • Open command prompt as administrator
  • Type “regsvr32 “C:\inetput\wwwroot\tiffserever\bin\islicense.net.dll”


3. When browsing the following page http://server/tiffserver/test.aspx
you’re prompted with the following message:







This is usually caused when “tiffpilot.exe” has not been configured within the “ISAPI and CGI Restrictions” and/or the “CGI-exe” is not enabled in the “Handler Mappings” in IIS.

  • If CGI has been enabled on the server, all that is required is to add “tiffpilot.exe” to the list of allowed executables under the “ISAPI and CGI Restrictions” section at the server level in IIS.
  • If the “ISAPI and CGI Restrictions” icon does not appear, you need to ensure that CGI is enabled on the server. This involves adding the CGI component of IIS via “Turn Windows Features On or Off” or “Manager Server
    Roles”, and then enabling of the CGI handler mapping.


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Neil Pitman founded Aquaforest Limited in 2001 and is the chief architect for the company’s PDF and OCR software products used by thousands of organizations ranging from NASA to the Dutch Ministerie van Justitie. Neil has 30 years’ experience in the software industry in the UK and USA in the areas of database systems, document management and software development tools and has served on the IDT committees of the British Standards Institute (BSI) and was a co-author of the BSI’s 2007 publication on the Long Term Preservation of Digital Documents.