>>Looks like a bug to me but you don't have to loop through all 256 characters to show that CHR(0) is not supported by TAG property.
>
>mmmm ,
>BUT only after to have tested all the characters.
>
>Now we know that from 0h1 to 0hFF Custom.Tag it is ok.
>The rest (2 or more characters and in other classes) is a faith action.
>
>I run the test, and copy/past it into UT.

That's exactly my point. You're wasting other people time by posting code unrelevant to a bug report.