This VBScript works in niceLabel, why doesnt it works in BarTender??

dim YearZero
dim YearCount 
dim returnvalue

YearZero = 2024
YearCount = Year - YearZero

YearLetter = Chr(65 + YearCount)

If (65 + YearCount) > 90 Then
     YearLetter = "ERROR"
End If

Result = YearLetter