Felix Franz <fefr at gmx.net> is claimed by the authorities to have written:

> > Since the w32 vm appears to use the same piece of code (IsImage()), I
> > suspect the same problem can occur.
> 
> 
> yes, the same problem occurs on Windows (latest VM) also.
I've fixed the problem for Acorn and I suspect that the attached new
version of IsImage() would work for w32.

tim

static int IsImage(char *name) {
/* check the named file to see if it is a decent candidate for a Squeak image file. Remember to check both the very beginning of the file and 512 bytes into it, just in case it was written from a unix machine - which adds a short extra header */
	FILE *fp;
	int magic;
	int byteSwapped(int);

	fp = fopen(name,"rb");
	if(!fp) return 0; /* could not open file */
	if(fread(&magic, 1, sizeof(magic), fp) != sizeof(magic)) {
		/* could not read an int from file */
		fclose(fp);
		return 0;
	}
	if (magic > 0xFFFF) {
		magic = byteSwapped(magic);
	}
	ImageVersionNumber = magic;
	if (readableFormat(magic)) {
		fclose(fp);
		return true;
	}
	/* no luck at beginning of file, seek to 512 and try again */
	if(fseek( fp, 512, SEEK_SET)) {
		/* seek failed, which implies fileis too small */
		fclose(fp);
		return false;
	}
		if(fread(&magic, 1, sizeof(magic), fp) != sizeof(magic)) {
		/* could not read an int from file */
		fclose(fp);
		return 0;
	}
	if (magic > 0xFFFF) {
		magic = byteSwapped(magic);
	}
	ImageVersionNumber = magic;
	if (readableFormat(magic)) {
		fclose(fp);
		return true;
	}
	return false;
}
-- 
Tim Rowledge, tim at sumeru.stanford.edu, http://sumeru.stanford.edu/tim
Useful random insult:- Uses his head to keep the rain out of his neck.