Conradk2:Hi Semilogic,
I have seen the installer fail to detect the MOSS/WSS installation. I suggest you log a formal support ticket in this regard.
There should not be a problem using WSS 3.0 and the MOSS Additional components although I am not 100% sure if it is supported.
Regards,
Conrad
I have just installed the MOSS 2007 components and we are using WSS 3.0. Things look good so far.
In order to install the components I had to add the following entry to the ProductCodes.xml file to make the installer see WSS 3.0:
<product category="SPS2007" name="Microsoft Windows Sharepoint Services 3.0" code="{90120000-1014-0000-0000-0000000FF1CE}"/>
I had to search the registry to find the CLSID for WSS 3.0, which I found in HKEY_CLASSES_ROOTInstallerProducts0002109410100000000000000F01FEC.
I hope that helps anyone else who is running into this same problem.