' Source
' http://cc.msnscache.com/cache.aspx?q=72465960679242&mkt=en-US&lang=en-US&w=577f5001&FORM=CVRE8
SHARED suffixes AS String() = _
{"Thousand ", "Million ", "Billion ", "Trillion ", _
"Quadrillion ", "Quintillion ", "Sextillion "}

SHARED units AS String() = _
{"","One ", "Two ", "Three ", "Four ", "Five ", _
"Six ", "Seven ", "Eight ", "Nine "}

SHARED tens AS String() = _
{"Twenty ", "Thirty ", "Forty ", "Fifty ", "Sixty ", _
"Seventy ", "Eighty ", "Ninety "}

SHARED digits AS String() = _
{"Ten ","Eleven ", "Twelve ", "Thirteen ", "Fourteen ", _
"Fifteen ", "Sixteen ", "Seventeen ", "Eighteen ", "Nineteen"}

SHARED expr AS NEW _
System.Text.RegularExpressions.Regex("^-?d+(.d{2})?$", _
System.Text.RegularExpressions.RegexOptions.None)

PUBLIC Function ExpandPrice(Price AS Double, _
Optional pSeparator AS String = ".") _
AS String
Dim pPrice As String
pPrice = FORMAT(Price,"##############.00")

Dim temp AS New System.Text.StringBuilder()
If Not expr.IsMatch(pPrice) Then
' temp.Append(pPrice) or whatever you want to do here
Else
Dim parts AS String() = pPrice.Split(pSeparator)
Dim dollars AS String = parts(0)
Dim cents AS String = parts(1)
If CDbl(dollars) > 1 Then
temp.Append(ExpandIntegerNumber(dollars) & "Dollars ")
If CInt(cents) > 0 Then
temp.Append("And ")
End If
ElseIf CDbl(dollars) = 0 Then
temp.Append(ExpandIntegerNumber(dollars) & "Zero Dollars ")
If CInt(cents) >= 0 Then
temp.Append("And ")
End If
ElseIf CDbl(dollars) = 1 Then
temp.Append(ExpandIntegerNumber(dollars) & "Dollar " )
End If

If CDbl(cents) > 1 Then
temp.Append(ExpandIntegerNumber(cents) & "Cents")
ElseIf CDbl(cents) = 0 Then
temp.Append(ExpandIntegerNumber(cents) & "Zero Cents ")
ElseIf CDbl(cents) = 1 Then
temp.Append(ExpandIntegerNumber(cents) & "Cent " )
End If
End If
RETURN temp.ToString()
End Function

Function ExpandIntegerNumber(pNumberStr AS String) AS String
Dim temp2 AS New System.Text.StringBuilder()
Dim number AS String = _
StrDup(3 - Len(pNumberStr) Mod 3, "0") & pNumberStr
Dim i AS Integer, j AS Integer = -1
Dim numPart AS String
For i = Len(number) - 2 To 1 Step -3
numPart = Mid(number, i, 3)
If Clng(numPart > 0) Then
If j > -1 Then
temp2.Insert(0,suffixes(j),1)
End If
End If
temp2.Insert(0,GetNumberUnder1000Str(numPart),1)
j += 1
Next
RETURN temp2.ToString()
End Function

Function GetNumberUnder1000Str(pNumber AS String) AS String
Dim temp1 AS New System.Text.StringBuilder()
If Len(pNumber) = 3 Then
If CLng(Left(pNumber, 1)) > 0 Then
temp1.Append(GetNumberUnder100Str(Left(pNumber, 1)) & "Hundred ")
End If
End If
temp1.Append(GetNumberUnder100Str(Right("0" & pNumber, 2)))
RETURN temp1.ToString()
End Function

Function GetNumberUnder100Str(pNumber AS String) AS String
If pNumber > 19 Then
RETURN tens(Left(pNumber, 1) - 2) & units(Right(pNumber, 1))
ElseIF pNumber >= 10 and pNumber <= 19 Then
RETURN digits(Right(pNumber, 1))
Else
RETURN units(Right(pNumber, 1))
End If
End Function