installation software

Hi I've been polluting my brain with Visual Basic and COM in order for the Windows installation software to be able to automatically configure IIS. I now have a short Visual Basic Script which takes as command line parameters the location of php.exe and a list of file extensions to map (eg .php, .phtml etc). I can write the appropriate values into the IIS metabase and the configuration seems to work. What the software does is take the existing script map, remove any entries for file extensions in the supplied list (eg .php) and then create a new entry for each file extension in the list. What I need is some advice/discussion about which node or nodes of the metabase to edit. The potential nodes are: WWW service master properties Web sites (on unique IP addresses and via host header redirection) Virtual Directories Applications Directories Files In all cases, the settings here are inherited by any new nodes created, but not any existing ones, so, for example if I edit the WWW service master properties, it essentially has no effect, because the web sites underneath already have their own script map settings. Possible strategies include: Only setting the script map for the first web site (usually labelled Default web site in the management console). Walking through all nodes, and anywhere there is a script map, add the php stuff to the node. Although the first option only works well for machines with one web site and no other defined script maps, it is pretty safe. The second option allows me to make a complete mess of an existing configuration, with the possibility of causing security problems. Any thoughts on what I should do? -- Phil Driscoll Dial Solutions +44 (0)113 294 5112 http://www.dialsolutions.com http://www.dtonline.org