The page https://rscrevolution.com/download.php?client=PC_Client says that the requirements are Windows 98 or higher, and Java 1.6 or higher.
When I start the client on my Windows XP VirtualBox, which runs other RSC private servers fine, it gives me the following error:
I am not allowed to post embedded images, but here is an imgur link to the image depicting the error: https://i.imgur.com/ioxG7oq.png
The error image depicts two popup dialogues, the lower one titled "RSCRevolution Updater", with inner text "Checking for updates...", and a modal one with buttons "OK" and "Cancel", titled "Updater fail", with a message "Failed to check remote version, check your connection".
I do not believe it is a networking error because another private server jar works fine.
I want to know if there is a way to remedy this error.
Thanks ahead of time.