Thanks for the reply. Unfortunately, I cannot alter the VB component - it's from a third party. Any other ideas?

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>>The function I'm calling is:
>>Sub GetPrices(WordenNum As Long, OpenPrices() As Single, HighPrices() As Single, LowPrices() As Single, ClosePrices() As Single, Volumes() As Long, Dates() As Long, NumberOfPricesToGet As Long)
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>As I see you use VB COM component. I sugest that you make all array parameters VARIANT type, because VFP strong-typing is not really "very strong"
>(I belive that behind the scenes strong-typed variable with a simple type do not differ from non-strong-typed variable)
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>
>>After defining each array like this:
>>LOCAL ARRAY Volumes[5]
>>STORE "X" TO Volumes
>I suggest that you STORE the empty value of the proper type (e.g. 0(zero) for integer types; 0.0 for real types; etc.)
>
>>And then calling like this:
>>mbhtemp1=otc.GetPrices(9996, @OpenPrices, @HighPrices, @LowPrices, @ClosePrices, @Volumes, @Dates, lcNoOfPrices)
>This is OK
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>>I have tried using COMARRAY() with different values, but same result.
>COMARRAY(MyObject, 11) is the correct setting according to me.
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>Hope this helps