I redownloaded the exe, completely removed 18.104.22.168 again (and checked the vst dll's had gone), installed 1.7 to default locations. It loads (slowly after "not responding") in standalone and can load user kits, the build version is 1.7.119. It now no longer crashes S1 x64 but the plugin build version is 1.5.143 built on Sep 28th 2012!! Where did that come from, should it not be the same as standalone?? I wonder now if when I installed 22.214.171.124 it even updated the plugin. I have had nothing but issues with this software, be it super high cpu, slow loads, crashes. It's getting a joke (and no, it's not my machine, everything else runs perfectly).
Please sort asap. Ta.