USGS Potential Field GXs - how to install in Oasis montaj 202x

Hi all, since I continue to be asked about this, I'll repost a summary of the info from the Oasis montaj forum (with a correction).

Jeff Phillips' excellent suite of GXs are written with GX Developer and provide excellent examples. To install and use them in Oasis montaj versions 2022 and later:

1. Download the most recent 2007 release of the source and compiled software here:

USGS Open-File Report 2007-1355: Geosoft eXecutables (GX’s) Developed by the U.S. Geological Survey, Version 2.0, with Notes on GX Development from Fortran Code (https://pubs.usgs.gov/of/2007/1355/)

2. Unzip the archive and open the gx\OM90\ subdirectory, where you will find the compiled software organized in a series of subdirectories.

3. Copy the files from each subdirectory into the corresponding Oasis montaj folder, as shown in the table below.

OM9.0 subdir

Oasis montaj 202x install locations

bin32

C:\Program Files (x86)\Geosoft\Desktop Applications\bin

lib32

C:\Program Files (x86)\Geosoft\Desktop Applications\bin

bin64

C:\Program Files\Geosoft\Desktop Applications\bin

ger

C:\Program Files\Geosoft\Desktop Applications\ger

omn

%USERPROFILE%\Documents\Geosoft\Desktop Applications\omn

gx

%USERPROFILE%\Documents\Geosoft\Desktop Applications\gx

Note: in my previous post, I neglected the "Desktop Applications" subdirectory for omn and gx.

4. Load the appropriate menu into Oasis montaj.
* usgsgx.omn for the licensed version
* usgsgxv.omn for the free viewer