I am working on upgrading an old MOSS application, and among other things it contains a custom action clearly visible in one of the libraries. I have set up a new CustomAction element in my new farm solution but we're not sure what was the Rights mask on the original action.
My problem is that I cannot find the definition in MOSS. I looked everywhere I could think of in the FEATURES folder there is no trace of that action in any XML document, there is no DLL, and the OOTB SiteActions.xml files are not modified.
So I ask thee, SharePoint SE community, for help. It's 10pm, do you know where my MOSS CustomActions are?