ISMS to be in old

Hello Team,

I am in calling a script in mail template to return the ISMS group to mail template but I want ISMS to be hardcoded in bold.

I tried googling the syntax to make the text bold in VB but couldn't find any.

Did anyone worked on the similar requirement?

Here is my piece of code ISMS: to be represented in bold

If Not String.IsNullOrEmpty(orderDetail2) Then
DetailStrg.AppendLine(String.Format("ISMS: {0}",orderDetail2))
End If

Else
Throw New Exception(scriptErrorBase & " no related person want org record!")
End If

Return DetailStrg.ToString()

End Function