The code in this project must be updated for use on 64-bit systems

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This page is specific to the Visual Basic for Applications (VBA) Language Reference for Office 2010.

Complete error message:

The code in this project must be updated for use on 64-bit systems. Please review and update Declare statements and then mark them with the PtrSafe attribute.

All Declare Statements must now include the PtrSafe keyword when running in 64-bit versions of Microsoft Office. The PtrSafe keyword indicates a Declare statement is safe to run in 64-bit versions of Microsoft Office.

Adding the PtrSafe keyword to a Declare statement only signifies the Declare statement explicitly targets 64-bits, all data types within the statement that need to store 64-bits (including return values and parameters) must still be modified to hold 64-bit quantities using either LongLong for 64-bit integrals or LongPtr for pointers and handles.