Hi, this is due to the fact that zDir may contain spaces especially under windows which confuse the command processor to interpret it as multiple arguments and not a single one as with single or double quotes (<a href="http:&#x2F;&#x2F;libcox.net&#x2F;arch.html" rel="nofollow">http:&#x2F;&#x2F;libcox.net&#x2F;arch.html</a>)