a cgi problem

hi!

I want to ask you a question about a problem I encountered while writing my thesis..

I use borland c 5.0 to write cgi programs. These lines in my program executes normally on my computer, but in my teacher's computer, it gives the error message "cannot open cleaned.tmp" and the program terminates, although I give the "write acces" for the same directory with my cgi program in both of the computers.

if ((fp = fopen("cleaned.tmp", "w")) == NULL)
{
puts("cannot open cleaned.tmp\n");
exit(1);
}

why do you think it happens?

thanks in advance..

unless his hard disk is full, i guess something went wrong here.
how exactly were you doing that?

I use personal web server in my computer and give write & execute acces to the directory which contains my cgi programs.

OS of My teacher's computer is win2000 and we use IIS there and again give write & execute acces to the same directory.

I thought that win 2000 may cause this problem and setup win2000 in my computer but did not encounter the same problem.

thanks again..