Look at the last three lines of example, I copied the whole block to not modify to much ...

Agnes
>Hi,
>
>THanks, but whilst your code may be safer mine *had* ,in this case, safely identified the correct/valid loProject object. It was the reference to loProject.Files that was failing....
>
>Regards,
>Viv
>
>>I do not trust For each in VFP8
>>
>>I use
>>

>>*Get Link to this hook (THIS does not respond, must not be active since controled by code)
>>*TAG is  THIS.TAG = SYS(2015) in Init event
>>FOR lnLoop2 = 1 TO _VFP.PROJECTS.COUNT
>> IF TYPE('_VFP.Projects(lnLoop2).PROJECTHOOK')='O';
>>   AND !ISNULL(_VFP.PROJECTS(lnLoop2).PROJECTHOOK);
>>   AND _VFP.PROJECTS(lnLoop2).PROJECTHOOK.TAG=THIS.TAG THEN
>>  loProject = _VFP.PROJECTS(lnLoop2)
>>  EXIT
>> ENDIF &&TYPE('_VFP.Projects(lnLoop2) ...
>>ENDFOR &&lnLoop2
>>
>>FOR lnFile = 1 TO loProject.FILES.COUNT
>> loFile = loProject.FILES(lnFile)
>>  ...
>>

>>
>>for this problem.
>>
>>HTH
>>
>>Agnes
>>>>>In the INIT of a project hook I have:

FOR EACH loFile IN APPLICATION.ACTIVEPROJECT.FILES

which has been working for years. Now I get a 'Property FILES not found' error on this line. The debugger shows Application.Project appears to be the valid and correct project; .FILES is an object but .FILES.Count gives 'Expression could not be evaluated'. This isn't project specific - I get the identical error in another project. Also, at least AFAICS, there's no #INCLUDE that could mess this up and if I step out of the code the project opens normally with all files listed.
>>>>
>>>>I am not sure about this issue either as I have never hit it and I use project hooks all the time. One thing to try is to clean the project up via the Project | Clean Up Project option. It might be a problem with a corrupt record in the project.
>>>
>>>Hi,
>>>Didn't appear to be a problem with the project files either. After I'd reinstalled VFP the same project/hook ran perfectly.