generate zip using wshell

Trying to generate a zip file using wscript.shell with winzip

I keep getting errors, either "WshShell.Exec Error '80070005' Access is denied. "  or "WshShell.Exec error '8007007b' The filename, directory name, or volume label syntax is incorrect. "

Here is my code:

<%@ language=javascript %>
<%
var Shell = Server.CreateObject("WScript.Shell");

var String= "H:\Inetpub\wwwroot\MAINTEMP\wzzip -a H:\Inetpub\wwwroot\MAINTEMP\test.zip H:\Inetpub\wwwroot\MAINTEMP\test.html";

Shell.Exec(String);
%>

I believe that winzip is setup correctly.  I can run the string from the command line.  I will award more points if neccessary.

Thanks.