for strcat:
http://msdn.microsoft.com/library/de...c_._mbscat.asp

char * a= new char 10;
a[0]='hi';
char * b= " sup";
strcat (a,b);

a shoudl now have "hi sup"

it will create files that subtract a character each time from the filename. so i named it 'test' and it ouput files named 'test' 'est' 'st' and 't'.
no...

i suggest your forget about 16 files at the moment. just do what you want for a single file. then add teh rest of them... get back with code and an explanation of what you want to do in each of the files.

seriously, read something about how strings work in c++... it will really help you...