# 1736 Parameter Operations Involving BLOBs Causing Invalid Pointer Operation Errors

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I'm getting multiple EInvalidPointer errors and access violations, which did not occur with the identical code under 4.05.

One example occurs on line 11178 of dbisamtb:

DeAllocMem(TempBlobBuffers[I]);

I get EInvalidPointer: Invalid pointer operation on a prepared, parameterized INSERT into a table with two Memo fields.

The AVs may be related to this; TDataCursor.GetIsRemote in dbisamen appeared to be one trouble spot.

The invalid pointer errors are replicable; they occur every time at the same places in my application's test cases (which ran without errors under 4.05). The test cases use CREATE TABLE to build a test table, so this is not a pre-4.07 invalid table issue. I have not been able to replicate this in a smaller application at this time.