>I have a system with almost 30mb of source code. Most of them have several years. Its work fine with the diferents version of Foxpro and Vfoxpro, until sp3 (Spanish version). I have many procedures with the same name in differents .prg . When a call to one of them is execute, VFP run the procedure but in a different prg !
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>Any suggestions ?

The first suggestion is to stop giving different procedures the same name. Procedures are not polymorphic like methods are. If you moved your procedures to be methods of a class then the reference would remove any abiguity from the one you meant to run;

Do MyProc && Ouclkd be in many places with the same name

MyObject.MyProc() && Is in ONLY one place

If you want more information about how VFP finds a procedure there is a page at the Foxwiki.com that explains the entire searching order.