SOAPUI keeps failing while pointing to corrupt Java

OK, managed to fix this; there are 2 folders in C:\Windows, System32 and SysWOW64.
Both had versions of java.exe in them, but only the latter was correct.
The System32 one was still pointing to the corrupted, uninstalled Java version.
I renamed it to something else (java.exe.back), and SOAPUI stopped picking it up, and picked up the correct version instead.

Hope this helps someone.