It's not free, but there is a great MRP manufacturing system written in VFP called TIW WorkShop. Their website is http://www.tiwcorp.com

One feature that may be of interest to you since you are located in Mexico, could be the multi-lingual capabilities. You have the ability to setup multiple languages and it can even be configured by user. That way if you have some users that might want to see english and others that might want to see spanish, you can setup each user for their own preference.

It's been on the market for many years and is very solid. I highly recommend it. Check out their website for more info.

Good Luck,
-Don

>>>>>>>Hello,
>>>>>>>
>>>>>>>Does some one has an example, code or DBFs about how to implement a MRP solution for a very small Manuf. companny that could be free, or to sell $?
>>>>>>>
>>>>>>>Best regards,
>>>>>>>
>>>>>>>Luis
>>>>>>
>>>>>>Luis,
>>>>>>I wrote an MRP system for a small stell fabricator. I also wrote the inventory, bill of materials, and work order modules. I did it with a very old xBase. The solution required standard and actual times for each item attached to a bill of materials. It also require integration with payroll.
>>>>>>
>>>>>>Is inventory, work order and bill of materials already set up?
>>>>>
>>>>>Thanks, Terry
>>>>>
>>>>>Yes I have Inventory with Kit construction to generate Purchase Orders for different Vendors.
>>>>>
>>>>>Do you think it can work?
>>>>
>>>>Sure it can! As long as a burn rate can be established, predicting when the various consumables need to be available is pretty straight forward.
>>>
>>>
>>>OK! Excelent!
>>>
>>>Can you share the code and DBFs?
>>>It would be great!
>>
>>I'll try to put together something together. What kinds of products does your client manufacture?
>
>Hand crafted parts: Lamps where the base has the cabels, the base, the socket, the uper part of the lamp, and one lamp can be paintet with diferent colors and then it is has a different part number.
>
>Thanks a lot!!!!