Index: /trunk/src/VBox/Main/src-client/GuestProcessImpl.cpp
===================================================================
--- /trunk/src/VBox/Main/src-client/GuestProcessImpl.cpp	(revision 42236)
+++ /trunk/src/VBox/Main/src-client/GuestProcessImpl.cpp	(revision 42237)
@@ -637,5 +637,5 @@
                 }
 
-                AssertMsg(!strErrDetail.isEmpty());
+                Assert(!strErrDetail.isEmpty());
                 rc = pCallback->Signal(pData->u32Flags /* rc from guest. */, strErrDetail);
             }