November 16, 2009

The installation of the GRID32.ocx file allows the TANKS program to run and print reports on PCs running Vista.  Grid32.ocx is a Visual Basic OCX control file. TANKS 4.09D is a compiled Visual Basic application.  It was last updated prior to the release of Vista.  Grid32.ocx was not included in the compiled program files because it was not needed with Windows XP.  

You must be logged in as a system administrator.  Copy the grid32.ocx file to the windows\system32\ folder. If you have not already done so, install the TANKS program.  You may need to reboot the PC.  To use TANKS you must remain logged in as the system administrator.

EPA has done limited testing with Vista and TANKS 4.09D and does not have daily access to PCs running Vista.  Therefore the Agency cannot support TANKS users running Vista, but will attempt to provide users with fixes whenever possible.