For a long time now, I use setiathome-5.15-kwsn-sse2-p4.exe succesful.
At the moment even with Boinc 5.10.3
I tried to update with the automatic installer (no graphics)
KWSN - Test & Benchmark Tool V2.2.exe
But each time I try it gets stuck on the test of KWSN_2.2B_SSE2-P4_Ben-Joe.exe