Scanning a directory

just by looking at this code can anyone see why it crashes my program each time? it does what its suppose to then when i gets to the last file it crashes.

Code:

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              char *Buffer;
              char *path = "C:\\windows";
              char *type = "*.*";
              SetCurrentDirectory(path);
              struct ffblk ffblk;
              int done;
              done = findfirst(type,&ffblk,0);
              while (!done)
              {
                char buff[1024];
                sprintf(buff,"%s\r\n", ffblk.ff_name);
                done = findnext(&ffblk);
              }

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All pointers to string literals should be const char *, but that can't be causing the crash...

A crash cause could be that a filename just might be longer than 1021 characters - unlikely, but possible.