In versions prior to 1.03, RunAsDate always waited until the kernel was fully loaded, and only then injected the desired date/time. This mean that some programs that get the date/time im very early stage, received the real current date/time, instead of the fake date/time of RunAsDate. Starting from version 1.03, when the 'Immediate Mode' is turned on, RunAsDate inject the date/time immediately when the process starts, without waiting to the kernel loading. However, this mode can also cause troubles to some applications, especially if they were written in .NET