This document can also be viewed at https://www.ca.com/us/services-support/ca-support/ca-support-online/knowledge-base-articles.TEC1938868.html
I am unable to use the 32-bit version of Datamaker. Is there a 64-bit version?
CA Test Data Manager (TDM)- Datamaker
The TDM Web Portal is the 64-bit component that is now available for download. The Portal currently provides some of the functionality that Datamaker does and new functionality is being added with each GA release. It has its own publish engine and enables capabilities such as Tester Self-Service, which the older Test Data on Demand (TDoD) interface used to provide.
You can read more about the Portal here: https://docops.ca.com/ca-test-data-manager/4-0/en/getting-started/ca-tdm-portal
Here are the TDM System Requirements for future reference as well: https://docops.ca.com/ca-test-data-manager/4-0/en/installing/install-ca-test-data-manager/system-requirements
New features and capabilities for the Portal will be updated in the 'Release Notes' section of our documentation with each release: https://docops.ca.com/ca-test-data-manager/4-0/en/release-notes
If you experience any issues, please open a support case by going to https://support.ca.com/irj/portal/newhome or calling CA Customer Care at one of these numbers http://www.ca.com/us/company/contact-us.html.