Bruge WScript.Shell til at køre RAR.EXE

jeg prøver at eksekvere

command = "C:\Programmer\WinRAR\Rar.exe a -m5 -s -EP1 C:\myRar.rar c:\inetpub\wwwroot\Archeo.asp"

var shell = Server.CreateObject("wscript.shell")
       
Response.Write("<b>Executing command : </b>" + command + "<br>");
Response.Flush()
       
RetCode = shell.run(command,1,true);
if( RetCode != 0){
    Response.Write("<b>Errors in the command : </b>" + command + "<br><br><b>Error : </b>&nbsp;&nbsp;" + error[RetCode]);
    }   
}

men får fejlen :

___________________________
Executing command : C:\Programmer\WinRAR\Rar.exe a -m5 -s -EP1 C:\myRar.rar c:\inetpub\wwwroot\Archeo.asp
Errors in the command : C:\Programmer\WinRAR\Rar.exe a -m5 -s -EP1 C:\myRar.rar c:\inetpub\wwwroot\Archeo.asp

Error :  FATAL ERROR
___________________________

Hvis jeg køre kommandoen i CMD virker det hele fint...

*suk*