Connecting to an Oracle Spatial Database
Global Mapper requires an Oracle file called oci.dll in order to run, so we include a copy of that file as part of the installation. When you connect to an Oracle database, however, you need to use the version of oci.dll that is part of the Oracle client software instead of the one that was installed with Global Mapper. Here is what you need to do to make that happen:
Make sure that you have the Oracle client software installed.
Make sure that the directory that contains oci.dll is in the system path. This is standard for most Oracle client installations.
Make sure that the Oracle client matches Global Mapper in that if you are using 32-bit Global Mapper, you need to use the 32-bit Oracle client, and if you are using 64-bit Global Mapper, you need to use the 64-bit Oracle client.
In the Global Mapper installation directory (typically "C:\Program Files\GlobalMapper" or "C:\Program Files (x86)\GlobalMapper"), the Global Mapper folder will be version specific. Rename the file "oci.dll" to "oci_original.dll".