ASP2ASPX can convert VBScript Functions to VB.NET automatically. Please see following table that lists VBScript and VB.NET functions:
| VBScript 5.6 Functions | VB.NET Functions or managed code |
| Abs | Math.Abs |
| Array | New Object() { } |
| Asc, AscB, AscW | Asc |
| Atn | Math.Atan |
| CBool | CBool |
| CByte | CByte |
| CCur | CDec |
| CDate | CDate |
| CDbl | CDbl |
| Chr | Chr |
| CInt | CInt |
| CLng | CLng |
| Cos | Math.Cos |
| CreateObject | CreateObject or New Instance in .NET |
| Date | Today |
| DateAdd | DateAdd |
| DateDiff | DateDiff |
| DatePart | DatePart |
| DateSerial | DateSerial |
| DateValue | DateValue |
| Day | Day |
| Eval | (Does not support) |
| Exp | Math.Exp |
| Filter | Filter |
| Fix | Fix |
| FormatCurrency | FormatCurrency |
| FormatDateTime | FormatDateTime |
| FormatNumber | FormatNumber |
| GetLocale | Session.LCID |
| GetObject | GetObject |
| GetRef | (Does not support) |
| Hex | Hex |
| Hour | Hour |
| InputBox | InputBox |
| InStr, InstrB | InStr |
| InStrRev | InStrRev |
| Int | Int |
| IsArray | IsArray |
| IsDate | IsDate |
| IsEmpty | IsEmpty |
| IsNull | IsDBNull |
| IsNumeric | IsNumeric |
| IsObject | * |
| Join | Join |
| LBound | LBound |
| LCase | LCase |
| Left, LeftB | Left |
| Len, LenB | Len |
| LoadPicture | LoadPicture |
| Log | Math.Log |
| LTrim | LTrim |
| Mid, MidB | Mid |
| Minute | Minute |
| Month | Month |
| MonthName | MonthName |
| MsgBox | MsgBox |
| Now | Now |
| Oct | Oct |
| Replace | Replace |
| RGB | RGB |
| Right, RightB | Right |
| Rnd | Rnd |
| Round | Math.Round |
| RTrim | RTrim |
| ScriptEngine | * |
| ScriptEngineBuildVersion | * |
| ScriptEngineMajorVersion | * |
| ScriptEngineMinorVersion | * |
| Second | Second |
| SetLocale | * |
| Sgn | Math.Sign |
| Sin | Math.Sin |
| Space | Space |
| Split | Split |
| Sqr | Math.Sqrt |
| StrComp | StrComp |
| String | New String() |
| StrReverse | StrReverse |
| Tan | Math.Tan |
| Time | TimeOfDay |
| Timer | VB.Timer |
| TimeSerial | TimeSerial |
| TimeValue | TimeValue |
| Trim | Trim |
| TypeName | TypeName |
| UBound | UBound |
| UCase | UCase |
| VarType | VarType |
| Weekday | Weekday |
| WeekdayName | WeekdayName |
| Year | Year |