I have a similar problem though we're using IE6 and VFP8. I'll see tomorrow if this would help me as well.

>Is the server and path to the .exe listed as trusted zone under local intranet zones? To disable this dialog you can add (or modify if it exists) this string in the Windows Registry.
>
>HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Associations
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>LowRiskFileTypes = .exe
>
>If more then one file type is added (or one exists and you are adding another), separate each one with a semi-colon. Log off and back in again for the setting to take effect usually.
>
>There are other ways as well. This site (look near the bottom of the page) recommends a different method:
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>http://www.intelliadmin.com/blog/
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>
>
>>When I run one of my compiled VFP 9 programs I now get the warning:
>>The publisher could not be verified. Are you sure you want to run this software?
>>
>>Publisher: Unknown Publisher
>>
>>I’m not sure if this started with the latest Win XP updates or The MS One Care I am running but that makes no difference. The problem is my customers are going to start to get this message.
>>
>>What do I need to do to fix this?
>>TIA