Ok so perhaps a variation could be done on it.

1) Create an XML file containing all the information needed for the validation
   (serial number, date of installation, number of installation...)

2) Add another file on the web that would serve to control access to the XML 
   structure. That other file would contain a 0 (no installation is presently 
   made) or 1 (installation in process).

3) Get the file that controls installations

4) If file contains 0 then continue with installation

5) Get the XML file to see it the serial number is there. If it's there add the 
   installation date in the file. After that Put back the XML file on the web.

6) If serial number is not there stop the application

There could be some steps missing here but I'm sure you get the whole idea.

Does that look better? If yes could you help in telling me where to start to accomplish this?




>My gut feeling is telling me that you'll need to put a full-blown web application or web service out there to accomplish this, so no, I don't think this can be done with just plain-old VFP out of the box. You'l either need to create and the register a COM object on the web server and use an ASP page to do the actual processing, or build a small application using West Wind Webn Connection.
>
>The issue is that I don't think you're application will be able to directly access that table, unless you can map a network drive to its location.
>
>Now then, using a simple XML document, you can accomplish everything except step number 3. (You can load the document from a URL and look for a serial number, but you cannot write back to the XML document without, either completely replacing it using FTP or, again having some sort of web service or application "listening" for that sort of information.)
>
>HTH,
>
>Travis
>
>>VFP 6
>>
>>I want to be able to control who can and who can't use an application.
>>
>>Here's what I'd like to do.
>>
>>

>>1) Add a table in my allocated space on the net
>>2) When my application is installed check if the serial number is in the DBF
>>   that was put on the web.
>>3) If serial number is there add the installation date in the table
>>4) is serial number is not there stop the application
>>

>>
>>I'll probably do more things than what I said but the thing is that I'd like to have the basic idea of how to process with this.
>>
>>Is it possible to do it with what just the basic stuff that comes with VFP or do I have to get other tools (like West Wind or others).