There is no drop dead coding in Karaoke Home Producer.
I have already answered with suggestions under Microstudio. Please go and read them for what to try. It is highly unlikely that the problem you are experiencing is due to MTU programs, but more likely from factors related to your computer.
Whenever software stops running, unless there is drop dead code in it, the problem is not the software, but the computer. Software doesn't just stop running. Always first look at what you (or someone else with access to your computer) have done recently to your computer.