Hi;
Searching for strings isnt good everytime coz sometimes they can be in resources as static. So if your message isnt a MessageBox api it is normal to not find any strings. Thus there is different types of strings like, Zero terminated,Unicode,pascal, $ terminated,etc. But as your application seems as a Visual C++ app. I prefer you to check for a DialogBoxParamA api. Still no use a rsource editor to examine application if there is a static text like your message.
So this message can be crypted or something like this at all. For example coder can be use reversed message trick.
Message <-- every cracker search for
egasseM <-- some eyes miss this.
or message can be simple crypted like
Message
tRvfgfdw
just look for something interesting.
Thats just a point of view of mine.
Regards.