Index: /trunk/src/VBox/Runtime/r0drv/nt/mp-r0drv-nt.cpp
===================================================================
--- /trunk/src/VBox/Runtime/r0drv/nt/mp-r0drv-nt.cpp	(revision 23682)
+++ /trunk/src/VBox/Runtime/r0drv/nt/mp-r0drv-nt.cpp	(revision 23683)
@@ -351,5 +351,6 @@
 int rtMpSendIpiVista(RTCPUID idCpu)
 {
-    g_pfnrtNtHalRequestIpi(1 << idCpu);
+    g_pfnrtKeIpiGenericCall(rtMpIpiGenericCall, 0);
+////    g_pfnrtNtHalRequestIpi(1 << idCpu);
     return VINF_SUCCESS;
 }