Per,

>*!*1	    BOOL bHasExt;           /* @Field TRUE if extension memory present */

above 1 should be 4, but your total length of 684 for the 5th parameter to the end is correct.

It looks like you are talking to the DLL since you are getting a response back. It all boils down to what 35 means in the context of this DLL. And if the first 4 parameters are correct. Can you talk to it at a different baudrate? Is the function expecting some of the other struct fields to have non-zero values?

>*700-16
>PCDCONN=ToLong(0)+ToLong(1)+ToLong(1)+ToLong(8)+REPLICATE(CHR(0),684)
>per= PcdComOpen(@PCDCONN)
>?per
>I my case I'm to get a proper answer from the call to the PcdComOpen
>I only get 35 in return.