This time, in a WinXP 64-bit install that's never had BRU installed before, v3.0.0.1 is installing but I cannot open / run it. I tried twice - once in D:\Program Files, uninstalled it & then in D:\Program Files (x86) with the same result each time.
Getting the following error(s) each time:

Same result with the no-installer version (but see Edit below).
Similar to this (which was WinXP 32-bit): Createprocess failed; code 193
Thanks for any help

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Edit: Oddly, the 32-bit no-installer version executable of v3.0.0.1 is working fine in WinXP 64-bit, but not the 64-bit no-installer version executable!