*	Create a child process that has the specified files as its standard
 *	input, output, and error. The child process runs asynchronously under
 *	Windows NT and Windows 9x, and runs with the same environment
 *	variables as the creating process.
 *
 *	The complete Windows search path is searched to find the specified
 *	executable. If an executable by the given name is not found,
 *	automatically tries appending standard extensions to the
 *	executable name.
 *
 * Results:
 *	The return value is TCL_ERROR and an error message is left in the
 *	interp's result if there was a problem creating the child process.
 *	Otherwise, the return value is TCL_OK and *pidPtr is filled with the
 *	process id of the child process.

    char *ext;
    char buf[2];
    DWORD attr, read;
    IMAGE_DOS_HEADER header;
    Tcl_DString nameBuf, ds;
    const TCHAR *nativeName;
    TCHAR nativeFullPath[MAX_PATH];
    static const char extensions[][5] = {"", ".com", ".exe", ".bat", ".cmd"};

    /*
     * Look for the program as an external program. First try the name as it
     * is, then try adding .com, .exe, and .bat, in that order, to the name,
     * looking for an executable.
     *
     * Using the raw SearchPath() function doesn't do quite what is necessary.

	if ((attr == 0xffffffff) || (attr & FILE_ATTRIBUTE_DIRECTORY)) {
	    continue;
	}
	strcpy(fullName, Tcl_WinTCharToUtf(nativeFullPath, -1, &ds));
	Tcl_DStringFree(&ds);

	ext = strrchr(fullName, '.');
	if ((ext != NULL) && 
            (strcasecmp(ext, ".cmd") == 0 || strcasecmp(ext, ".bat") == 0)) {
	    applType = APPL_DOS;
	    break;
	}

	hFile = CreateFile(nativeFullPath,
		GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING,
		FILE_ATTRIBUTE_NORMAL, NULL);