Some users report that their NaroCAD crash right at start. For them, as an workaround, they have to install manually the Visual C++ Runtime. Probably something makes to not use the right one installed with NaroCAD.
So please download Visual C++ 2008 Runtime SP1 and report back in case you still have problems:
Also, if you think that this solved the problem, you may comment what is your machine configuration (like your OS, language, etc. to check if we can reproduce the situation and solve it for good).