Hi!

>Three questions.

Three answers ;)

>I used app hook in my original project. Not sure what its used for.

Its zero question, so we have 4 now ;)
Ok, APP hook is just as VFP class that runs ONLY in design-time to do something with files or content of project.

>1. Is it necessary to have app hook in my rebuilt project?

No, but when it contains some useful functionality in design-time, than yes.

>2. If so, how do I put it back in?

Open 'Project Info...' from shortcot menu. At the bottom you will see 'Project Class...'

>I have a backup that only hours old but have made changes to forms etc.
>3. Can I just copy the project (PJX and PJT) files from the backup without copying any other files from the backup? 4. Any problems doing it that way?

Of course! use PJX/PJT files and nothing elase. VFP project files structure is VERY transparent, that means when you edit some module, only files of that module changed and nothing else. PJX/PJT files changes when you add/delete/rename files and when you change their status or doing something else in the project (recompiling sometimes change project content too to update timestamps).

>
>Well 4.

I see ;)

HTH.

>
>Thanks!
>Roland...
>==============================================
>>Hi!
>>
>>This happens often and I recommend you to keep frequent backup copy of all your project files somewhere.
>>
>>To fix you problem you need to recreate project files only, because they corrupted. All other files (PRG, forms, libraries etc.) should be ok. Just delete project files (PJX and PJT), than create project again and use 'add file' to add all files again.
>>
>>You may also try to open PJX file as VFP table and figure out what was corrupted there, but I cannot help you here - never had such type of corruption.
>>Sometimes, however, when you open project as table, pack it and close, it works ok. Just try this first, if it will not work - recreate it.
>>
>>>I was just changing an When Event to set focus of a editbox with the debugger running and tried to save the form and received a can't write error and then another error (didn't record it).
>>>
>>>Anyway when I try to open the project I receive the error message:
>>>
>>>Unable to find Visual Class Library C:\program files\microsoft visual studio\vfp98\
>>>
>>>Any ideas how to fix this so I can retreive my project.
>>>
>>>What a mess. My first finished (allmost finished) project and then it crashes.
>>>
>>>Thanks in advance!
>>>Roland...