RSForm!Pro has long been considered the "gold standard" for form builders in the Joomla ecosystem. Version 1.40, specifically Revision 45, was a stable release designed during the peak of the Joomla 2.5 and early Joomla 3.x eras.
Most "free" versions of premium plugins found on warez sites contain malicious code. This can lead to your site being used for phishing, sending spam emails, or complete data theft. rsform pro 140 rev45 for joomla 25 free
If you are still running Joomla 2.5, you are likely maintaining a legacy project. It is important to remember that Joomla 2.5 stopped receiving official security updates in December 2014. RSForm
Finding an older, specific version of a Joomla extension like for a legacy system like Joomla 2.5 can be a challenge. While many developers look for "free" versions or "nulled" downloads, there are significant risks and better alternatives to consider for your website's health. This can lead to your site being used
Showing or hiding fields based on user input. The Risks of Searching for "Free" Premium Extensions
Basic hooks for Mailchimp, Salesforce, and payment gateways like PayPal.