>>>Hello,
>>>
>>>What is the use of Object.Tag?
>>
>>You can keep any data there (that data must be Char) From Help for TAG property:
>>Stores any extra data needed for your program. Available at design time and run time.
>
>Yes, I understand that...
>
>But, I just found out that mostly every object has such property, but I would like to ask UT users where they used this property. Is it usefull? Maybe there is some function getObjectByTag?

A better name would be "yourowndata", or something like that. It's simply a "gift" from Microsoft, a property YOU can use for whatever you want. It's not used by VFP at all.