That's what I came to realize, as I was writing the message.

Thanks

>Yes on #3 (for real time scanning for now)...
>
>>For now, I have taken these actions, based on recommendations in this thread
>>
>>(1) I have excluded the folder where all my project files are located so that it is not scanned by antivirus
>>(2) I have turned off write caching
>>(3) I have set all the temp files used by VFP into their own folder (hmmm, should this folder be excluded from AV as well)
>>(4) I have removed FoxUser.
>>
>>No problems yesterday. We'll see if that continues.
>>
>>Thanks to all for your help
>>
>>Jim
>>
>>
>>
>>
>>>I agree with Tore. Something must have changed for this to suddenly become a regular occurrence. Have you tried doing a System Restore?
>>>
>>>We are all grabbing at straws here. I know how aggravating these things can be. Please let us know what it was, will you? Good luck!
>>>
>>>>Tore --
>>>>
>>>>(1) My hardware configuration has not changed in many months -- probably more than a year.
>>>>
>>>>(2) It happens on many forms. And not necessarily the first time I work on it; I can be modifying and testing it, opening and saving it repeatedly, and it will suddenly fail.
>>>>
>>>>I have seen no pattern whatsoever in the problems.
>>>>
>>>>
>>>>>Jim,
>>>>>
>>>>>1. did you change any hardware on your computer?
>>>>>2. does this happen on only one form, or on many forms?
>>>>>
>>>>>>Neil -- Certain corruption?
>>>>>>
>>>>>>I am just wondering if it is so certain, how come I went for years without encountering it, and now seem to be encountering it almost daily (starting maybe a month ago).
>>>>>>
>>>>>>Jim
>>>>>>
>>>>>>>Write caching = random corruption
>>>>>>>Write caching + real virus scanning = certain corruption
>>>>>>>
>>>>>>>>OK, those look like very detailed instructions. Write caching is enabled for the disk where my apps live. How is that relevant?
>>>>>>>>
>>>>>>>>>Turn Disk Write Caching On or Off
>>>>>>>>>
>>>>>>>>>1. Right-click My Computer, and then click Properties.
>>>>>>>>>2. Click the Hardware tab, and then click Device Manager.
>>>>>>>>>3. Expand Disk Drives.
>>>>>>>>>4. Right-click the drive on which you want to turn disk write caching on or off, and then click Properties.
>>>>>>>>>5. Click the Policies tab.
>>>>>>>>>6. Clear the Enable write caching on the disk check box as appropriate.
>>>>>>>>>7. Click OK.
>>>>>>>>>8. Restart the Computer.
>>>>>>>>>
>>>>>>>>>>I have absolutely no idea. I have never done anything with write caching, nor do I know how to.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>>Is write caching disabled on all HDD in the system?
>>>>>>>>>>>
>>>>>>>>>>>>I've been getting the following error message every day or so:
>>>>>>>>>>>>
>>>>>>>>>>>>Memo File (Form-Name).SCT is missing or invalid.
>>>>>>>>>>>>
>>>>>>>>>>>>This occurs after I have been working on a form, when I try to save it. It's not the same form every time or anything, so I can see no pattern.
>>>>>>>>>>>>
>>>>>>>>>>>>Now, obviously, the SCT had to exist when I opened the form to edit it, and I can see that it exists, so it must have become invalid.
>>>>>>>>>>>>
>>>>>>>>>>>>How can that happen, if I am saving it???