IIS 6.0 WScript Execution

Sorry for double-post -- other on in .iis.
I have to get this resolved, I'm dying!! I've spent my whole work day
trying to figure it out.

Thx!

----------
Source: -2147024891
Desc: Access is denied.

Line Source:
Set oShell = CreateObject("WScript.Shell")
--> oShell.Exec("c:\Sit.bat")

I SWEAR this file and anything is calls has 100% Everyone and IUSR_xxx
FULL Control Access.

I remember something to do with DCOMCNFG on my old Win2000 machine, but
I'm migrating to 2003 and DCOMCNFG is VERY different..

Can someone help to enable WScript exec in 2003 + IIS6?

I'm sure this hasn't been asked before, since I just skimmed tens of
posts with nothing :)

Thanks!

.