Hi,
In order for Cognos Administration to function properly, you may need to manually edit C:\Windows\System32\inetsrv\config\applicationhost.config.
Check for the following entry: (CGI_Cognos is whatever you called your module mapping to get Cognos CGI running in IIS)
<add name='CGI-cognos' path='*.cgi' verb='*' modules='CgiModule' resourceType='Unspecified' />
and add allowPathInfo='true' to it, so it looks like this:
<add name='CGI-cognos' path='*.cgi' verb='*' modules='CgiModule' resourceType='Unspecified' allowPathInfo='true' />
Cheers!
MF.