The ToBase64 property will return a BASE64 representation of
the data currently contained by the Blob. It is most often used
because it is easier to represent binary data in this way for transfer by text-only services, such as email.
To get BASE64 data back into the Blob, you should
use the FromBase64
You can use this method as easily as this:
Dim b As New StreamBlob
Set b.Stream = ref_stream
b.Text = "sometext"