ActiveScripting: import email => no module named _codecs

[vadim]

I am doing rather simple thing after installing win32com 
extensions (IE):

<script language="Python" >
import email.Parser
</script>

and getting following error:
...
File "<ScriptBlock> ", line 2, in ?
  import email.Parser
SystemError: Failed to load the builtin codecs: No module named _codecs

Does anyone could help what it means?