c(36) and c(38) versions are not binary (nocptrans). They're plain char fields and directly convertible to uniqueidentifier.
PS: I see DBTYPE_BYTES there. It matches VFP9 VFPOLEDB specicification and would directly convert to DBTYPE_GUID if it were c(16) nocptrans version. At home I had old VFPOLEDB (VFP7)that maps c(16) binary to DBTYPE_STR and I had to use varbinary first). When it's DBTYPE_BYTES a GUID is exactly 16 bytes (16*8=128 bits value).

Nope it doesn't convert directly and I get conversion error as you said (DTS bug IMHO). To workaround:

From Transform (...) go to "Transformations" tab. Select "Transform ...." and edit VB script there:

Under "Function Main()" line add this line:

TransformFlags = DTSTransformFlag_ForceConvert

Cetin

>Okay, this is not the result I am getting so I may have something set wrong in my DTS.
>
>I have the c(38) nocptrans field. I run the DTS wizard. I pick uniqueid for that field.
>
>I run the DTS and I get this error:
>
>DTSTransformCopy: Schema validation failed. See extended error information.
>TransformCopy 'DirectCopyXForm' validation error: ForceConvert not specified but
>required for column pair 13 (source column 'pk_supplier'
>(DBTYPE_BYTES),destination column 'pk_supplier' (DBTYPE_GUID)
>
>Any idea how to specify ForceConvert ?
>
>>Charles,
>>I didn't have VFP and SQL server on this box so it took me sometime to install them and test:)
>>I created a database in VFP with 3 tables in it. Those 3 tables had c(38),c(36) and c(16) nocptrans versions respectively.
>>In SQL server DTS I directly mapped 36,38 ones to uniqueidentifier and 16 bytes one to varbinary(16). All imported sucessfully. After import I changed type of 3rd one to uniqueidentifier.
>>Checked values in both VFP and SQL server and they matched.
>>Cetin
>>
>>>>I think we're losing to be synch in "upsizing".
>>>
>>>Yani, "out of synch" (free English lesson in return for code lesson :-)
>>>
>>>Okay, I think I am starting to get what you are saying. ( still don't understand pguid and rguid as you use them but maybe I don't have to in order to use the function. ) I did understand we were talking about using code on the VFP side to 'upsize' and not to use the wizard.
>>>
>>>I did try converting the c(36) guids to c(38) including the brackets. If I do that the DTS transformation allows me to select UniqueID as the destination data type, but the import fails saying that a forcedconversion is required and I can't find out how to do that. ( will go back and try again on the DTS wizard )
>>>
>>>Let me play some more and I will come back with more questions.
>>>