>>>>(1) The short way is to cast the return result to UInteger, and change the return type of GetCrc32() to UInteger
>>>
>>>This line cannot be changed to UInteger:
>>>
>>>

>>>        Dim lnCRC32Result As Integer = &HFFFFFFFF
>>>

>>>
>>>It would give an error: "Constant expression not representable in type 'UInteger"
>>
>>Yes, it seems vb interpretes those as signed
>>
>>http://msdn.microsoft.com/en-us/library/s9cz43ek.aspx
>>
>>Append the type to the constant. U and I
>>

>>    Dim lnCRC32Result As UInteger = &HFFFFFFFFUI
>>

>
>There you go! Thx, didn't know that syntax existed :-{

Well, you know more vb than I do - I just googled my way through