Informix ODBC 8.0.2 Windows
- Last Updated: May 8, 2026
- 8 minute read
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README
Progress(R) DataDirect(R)
Progress DataDirect for ODBC for Informix Wire Protocol Driver
Windows Platforms (32- and 64-bit)
Release 8.0.2
February 2026
***********************************************************************
Copyright (C) 2026 Progress Software Corporation and/or its
subsidiaries or affiliates. All Rights Reserved.
***********************************************************************
This README file contains information for Progress(R) DataDirect(R)
for ODBC for Informix(TM) Wire Protocol Driver.
This README file contains information not included in the PROGRESS
DATADIRECT FOR ODBC FOR INFORMIX WIRE PROTOCOL DRIVER USER'S GUIDE.
CONTENTS
Post-GA Product Announcements
Requirements
Installation Directory
Data Source and Platform Support
Changes Since 8.0.2 GA
Release 8.0.2 Features
Driver WorkAround Options
Notes, Known Problems, and Restrictions
Documentation
Installed Files for the 32-bit Driver
Installed Files for the 64-bit Driver
Post-GA Product Announcements
The readme files will no longer be updated with product announcements and new
features after the General Availability (GA) of the product. For the latest
updates and enhancements, please refer to the release notes
(https://www.progress.com/datadirect-connectors/whats-new).
Requirements
* The installer program requires a JVM that is Java SE 11 or higher, including
Oracle JDK, OpenJDK, and IBM SDK (Java) distributions.
* The driver requires the following runtime library:
Microsoft Visual C/C++ runtime version 14.40.33810 or higher
* IMPORTANT: You must have the Microsoft Data Access Components (MDAC)
installed to use this product.
- For 32-bit Windows systems, version 2.6 or higher is required.
- For 64-bit Windows systems, version 2.8 or higher is required.
Depending on the version of your Windows operating system, these
components may already be installed. You can download a utility that
determines whether MDAC is installed and its version from the following
Microsoft site:
http://msdn.microsoft.com/en-us/data/aa937730.aspx
You can also download MDAC from the same site.
Installation Directory
* The default installation directory for the 32-bit driver on a 64-bit
system is:
C:\Program Files (x86)\Progress\DataDirect\ODBC
* The default installation directory for all other installations is:
C:\Program Files\Progress\DataDirect\ODBC
Data Source and Platform Support
For the latest data source and platform support information, refer to the
Product Compatibility Guide:
https://docs.progress.com/bundle/datadirect-product-compatibility/resource/
datadirect-product-compatibility.pdf
Changes Since 8.0.2 GA
Debugging Symbols
-----------------
The product package now includes .pdb files. These files contain debugging
symbols that can be used for diagnosing and debugging issues in the driver.
Windows Runtime Version Upgrade
-------------------------------
The driver is now compiled with a Visual Studio 2022 compiler for Windows
platforms. As a result, you must have Microsoft Visual C/C++ runtime
version 14.40.33810 or higher on your machine to run the driver.
JRE Requirement for the Installer
---------------------------------
The installer program now requires you to install a JRE that is Java SE 11 or
higher before running the installer. In earlier versions, the JRE used by the
installer program was included in the product. However, to avoid potential
security vulnerabilities, the installer program no longer includes a JRE.
Instead, the installer program uses the JRE in your environment to allow for
the most secure version of a JRE to be used.
Notes:
* This change does not affect the JVM requirements for the driver. For the latest
driver requirements, refer to the Product Compatibility Guide:
https://docs.progress.com/bundle/datadirect-product-compatibility/resource/
datadirect-product-compatibility.pdf
* The installer program cannot remove the already installed JRE files from the
install directory automatically. Remove them manually.
ICU Library Upgrade (74.1)
--------------------------
The ICU library files that are installed with the product have been
upgraded to version 74.1. As a part of this upgrade, the ICU library
file names have changed:
* For the 32-bit driver: From ivicu28.dll to ivicu.dll
* For the 64-bit driver: From ddicu28.dll to ddicu.dll
This upgrade is available starting in build 08.02.1072 of the ICU
library files.
Changes to Installation of Non-Essential Components
-----------------------------------------------------
The installer program has been updated to no longer install common components
for drivers that do not use them. As a result, the installer program no longer
installs the following common components for the Informix Wire Protocol
driver:
* OpenSSL library files, such as ivopenssl30.dll, ddopenssl30.dll, fips.dll,
and openssl.cnf.
* Curl library files, such as ivcurl28.dll and ddcurl28.dll.
If the files are not used by any other DataDirect driver on your machine, you
can safely remove them from existing product directories.
Release 8.0.2 Features
Driver Enhancements
-------------------
* The driver has been enhanced to include timestamp in the internal packet
logs by default. If you want to disable the timestamp logging in packet
logs, set PacketLoggingOptions=1. The internal packet logging is not
enabled by default. To enable it, set EnablePacketLogging=1.
Driver WorkAround Options
Progress DataDirect has included non-standard connection options (workarounds)
for the driver that enable you to take full advantage of packaged ODBC-enabled
applications requiring non-standard or extended behavior. Refer to the chapter
"WorkAround options" in THE PROGRESS DATADIRECT FOR ODBC DRIVERS REFERENCE for
a description of these options.
Notes, Known Issues, and Restrictions
Specifying values for the same connection option multiple times
---------------------------------------------------------------
The driver does not support specifying values for the same connection
option multiple times in a connection string or DSN. If a value is
specified using the same attribute multiple times or using both
long and short attributes, the connection may fail or the driver may
not behave as intended.
126 Error When Modifying Data Sources on Windows 10
---------------------------------------------------
You may receive a 126 error when adding or configuring a data source stored
on a network location. This is caused by the settings of the User Account
Control (UAC) security feature on Windows 10. To work around this issue:
Important: Implementing this fix disables security safeguards that are designed
to protect your machine. Before starting, refer to the following Microsoft
documentation for potential risks associated with disabling the UAC feature:
http://windows.microsoft.com/en-us/
windows/what-are-user-account-control-settings
1. From the Start menu, type regedit in the search field; then, select regedit
from the results list. The Registry Editor window opens.
2. Navigate to the following registry subkey:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
3. Right-click on the subkey; then, select New > DWORD Value.
4. Rename the new value EnableLinkedConnections.
5. Right-click EnableLinkedConnections, and then click Modify. The Edit DWORD
Value window opens.
6. In the Value data field, type 1. Click OK.
7. Close the Registry Editor; then, restart your computer.
ODBC Development on Windows Platforms
--------------------------------------
Please read the notices.txt file in the installation directory for
licensing information regarding the ODBC Core Components. Contact your
Progress DataDirect representative if you have any questions.
SQLColAttribute(s)
------------------
The column attributes 1001 and 1002, which were assigned as DataDirect-
specific attributes, were inadvertently used as system attributes by
the Microsoft 3.0 ODBC implementation. Applications using those
attributes must now use 1901 and 1902, respectively.
SQL_C_NUMERIC
-------------
Because of inconsistencies in the ODBC specification, users attempting
to use SQL_C_NUMERIC parameters must set the precision and scale values
of the corresponding structure and the descriptor fields in the
Application Parameter Descriptor.
For Developers Using IIS
------------------------
One of the most common connectivity issues encountered while using IIS
(Microsoft's Internet Information Server) concerns the use and settings
of the account permissions. If you encounter problems using DataDirect
drivers with an IIS server, refer to KnowledgeBase document number 4274
on the Progress DataDirect web site:
http://knowledgebase.datadirect.com.
For Microsoft Access Users
--------------------------
Some SQL implementations, such as PROGRESS, do not allow queries to
contain the COUNT function without the DISTINCT set quantifier. For
example, "SELECT COUNT(empid) FROM employees" is not a valid SQL query
for PROGRESS. This type of query can be generated using Microsoft
Access and results in an error.
Documentation
PROGRESS DATADIRECT FOR ODBC FOR INFORMIX WIRE PROTOCOL DRIVER
DOCUMENTATION SET
---------------------------------------------------------------
The driver documentation set is available from the Progress Information Hub:
https://docs.progress.com/category/datadirect-ibm-informix
You can access the online help system directly via the HTML redirect in the
installation Help directory.
Installed Files the 32-bit Driver
This file list assumes a full installation of the driver and
documentation.
The installer copies the following file to the Windows system
directory:
ivtrc28.dll DataDirect trace library
The installer copies the following files and subdirectories to the
product installation directory, by default:
For the 32-bit driver on 64-bit machines:
C:\Program Files (x86)\Progress\DataDirect\ODBC
For all other installations:
C:\Program Files\Progress\DataDirect\ODBC
\<install_dir>\:
----------------
license.txt Progress DataDirect license agreement
\drivers\:
---------
ivicu.dll Unicode conversion tables
ivicu.pdb Debugging symbols for ICU library
ivifcl28.dll Informix Wire Protocol Driver
ivifcl28.pdb Debugging symbols for Informix Wire
Protocol Driver
ivifcl28r.dll Informix Wire Protocol Driver
resource file
IVODBC.LIC DataDirect license file
ivtrc28.dll DataDirect trace library
ivtrc28.pdb Debugging symbols for DataDirect
trace library
qesqlext.h Header file for DataDirect-specific ODBC
Definitions
\FIXES\:
--------
fixes8.0.txt List of fixes since last release
\help\:
------
*.html HTML redirects to online connector help systems
and documentation resources
\install\:
---------
*.* Files associated with the installer program
\NOTICES\:
---------
ODBC for Informix v8.0
notices.txt Third-party vendor license agreements
\READMES\:
---------
ODBC for Informix v8.0
readme.txt This file
\samples\bulk\:
--------------
bulk.c Bulk example source
bulk.exe Bulk application
bulk.mak Bulk example make file
bulk.sln Bulk example solution file
bulk.vcproj Bulk example project file
ddlogging.properties Log configuration file for the
Informix driver
\samples\bulkstrm\:
------------------
bulk.cpp Bulk streaming example source
bulk.hpp Bulk streaming example header
bulk.rc Bulk streaming example resource file
bulkstreaming.sln Bulk streaming example solution file
bulkstreaming.vcproj Bulk streaming example project file
bulkstrm.exe Bulk streaming example application
bulkstrm.txt Bulk streaming description
msgprintf.hpp Bulk streaming example header file
ProgressDataDirect.bmp
ProgressDataDirect.ico
winmain.cpp Bulk streaming example source file
ddlogging.properties Log configuration file for the
Informix driver
\samples\example\:
-----------------
example.c Example source
Example.exe Example application
example.h Example header
Example.mak Example make file
Example.sln Example solution file
Example.vcxproj Example project file
ddlogging.properties Log configuration file for the
Informix driver
\samples\translat:
-----------------
LIBMAIN.C
README.TRN Translation Library example description
TRANSLAT.C Translation Library example source file
WINNT.MAK Translation Library example make file
\tools\:
-------
ddextwin.exe License Extender utility
ddprocinfo.exe Processor Information utility
DSNConverterSil.exe Data Source Converter utility
XMLP.exe A GUI demo tool that persists a result set
to an XML data file
\tools\Tableau:
----------------
DataDirect Informix.tdc Tableau data source file
\uninstall\:
-----------
*.* Files used to uninstall the product
Installed Files for the 64-bit Driver
This file list assumes a full installation of the driver and its
documentation.
The installer copies the following file to the Windows system
directory:
ddtrc28.dll DataDirect trace library
The installer copies the following files and subdirectories to the
product installation directory, by default:
C:\Program Files\Progress\DataDirect\ODBC:
\<install_dir>\:
----------------
license.txt Progress DataDirect license agreement
\drivers\:
---------
ddicu.dll Unicode conversion tables
ddicu.pdb Debugging symbols for ICU library
ddifcl28.dll Informix Wire Protocol Driver
ddifcl28.pdb Debugging symbols for Informix Wire
Protocol Driver
ddifcl28r.dll Informix Wire Protocol Driver
resource file
DDODBC.LIC DataDirect license file
ddtrc28.dll DataDirect trace library
ddtrc28.pdb Debugging symbols for DataDirect trace
library
qesqlext.h Header file for DataDirect-specific ODBC
Definitions
\FIXES\:
--------
fixes8.0.txt List of fixes since last release
\help:
------
*.html HTML redirects to online connector help systems
and documentation resources
\install\:
---------
*.* Files associated with the installer program
\NOTICES:
---------
ODBC for Informix v8.0
notices.txt Third-party vendor license agreements
\READMES:
---------
ODBC for Informix v8.0
readme.txt This file
\samples\bulk\:
---------------
bulk.c Bulk example source
bulk.exe Bulk application
bulk.mak Bulk example make file
bulk.sln Bulk example solution file
bulk.vcproj Bulk example project file
ddlogging.properties Log configuration file for the
Informix driver
\samples\bulkstrm\:
-------------------
bulk.cpp Bulk streaming example source
bulk.hpp Bulk streaming example header
bulk.rc Bulk streaming example resource file
bulkstreaming.sln Bulk streaming example solution file
bulkstreaming.vcproj Bulk streaming example project file
bulkstrm.exe Bulk streaming example application
bulkstrm.txt Bulk streaming description
msgprintf.hpp Bulk streaming example header file
ProgressDataDirect.bmp
ProgressDataDirect.ico
winmain.cpp Bulk streaming example source file
ddlogging.properties Log configuration file for the
Informix driver
\samples\example\:
------------------
example.c Example source
Example.exe Example application
example.h Example header
Example.mak Example make file
Example.sln Example solution file
Example.vcxproj Example project file
ddlogging.properties Log configuration file for the
Informix driver
\samples\Translat:
-----------------
LIBMAIN.C
README.TRN Translation Library example description
TRANSLAT.C Translation Library example source file
WINNT.MAK Translation Library example make file
\tools:
-------
ddextwin.exe License Extender utility
ddprocinfo.exe Processor Information utility
DSNConverterSil.exe Data Source Converter utility
XMLP.exe A GUI demo tool that persists a result set to
an XML data file
\tools\Tableau:
----------------
DataDirect Informix.tdc Tableau data source file
\uninstall\:
------------
*.* Files used to uninstall the product
~~~~~~~~~~~~~~
February 2026
End of README