VBscript IIS And WScript.Shell Object

can SO tell me why the following script :

dim oShell
set oShell=WScript.CreateObject("WScript.shell")
oShell.run ("C:WINNTsystem32cmd.exe /c C:WINNTsystem32
otepad.exe")
set oShell=nothing

works as expected in the context of a .vbs script and doesn't work (with the following changes made...) when inserted in a .asp web page under IIS ?

dim oShell
set oShell=Server.CreateObject("WScript.Shell")
'
intReturn = oShell.run ("C:WINNTsystem32cmd.exe /c C:WINNTsystem32
otepad.exe")
response.write(intReturn)
set oShell=nothing

the Shell object is well created (i can check some of its properties) but the oShell.run command doesn't seem to execute the given command line.