sorry for reply because UT was out of my connection all yesterday until tis morning
i go with this beautiful and oop solution..I could have thought to it !
fortunatly its best documented in foxhelp:
help Project Object Properties, Methods, and Events (Visual FoxPro)
debug,encrypted and icon are here (an others shown in project informations dialog).
Thank you so much,that solution my problem to manipulate the build project programmatly.