GDAL with ArcSDE driver

Question

I am attempting to use GDAL/OGR to read from an SDE enabled database (MS SQL). I have tried the steps located here but do not have access to the database server. I am also using a GDAL installation for python downloaded and installed from GISInternals. (gdal-202-1500-core.msi and GDAL-2.2.1.win32-py2.7.msi) so my setup is a little different.

What I have tried

1. I downloaded the archived ms4w_3.0.6 and copied the ogr_SDE.dll and gdal_SDE.dll to C:\Program Files (x86)\GDAL\gdalplugins

2. Downloaded and installed the ArcSDE binaries from the MyEsri site. Verified the SDEHOME path was set correctly.

3. Add C:\Program Files\ArcGIS\ArcSDE\sqlexe\bin;C:\ms4w_3.0.6\ms4w\tools\gdal-ogrto path.

However, when I check for available formats, I see this:

C:\Program Files (x86)\GDAL\gdalplugins>ogrinfo --formats
ERROR 1: Can't load requested DLL: C:\Program Files (x86)\GDAL\gdalplugins\ogr_S
DE.dll
126: The specified module could not be found.

ERROR 1: Can't load requested DLL: C:\Program Files (x86)\GDAL\gdalplugins\ogr_S
DE.dll
126: The specified module could not be found.

Supported Formats:
  -> "ESRI Shapefile" (read/write)
  -> "MapInfo File" (read/write)
  -> "UK .NTF" (readonly)
  -> "SDTS" (readonly)
  -> "TIGER" (read/write)
  -> "S57" (read/write)
  -> "DGN" (read/write)
  -> "VRT" (readonly)
  -> "REC" (readonly)
  -> "Memory" (read/write)
  -> "BNA" (read/write)
  -> "CSV" (read/write)
  -> "NAS" (readonly)
  -> "GML" (read/write)
  -> "GPX" (read/write)
  -> "LIBKML" (read/write)
  -> "KML" (read/write)
  -> "GeoJSON" (read/write)
  -> "Interlis 1" (read/write)
  -> "Interlis 2" (read/write)
  -> "GMT" (read/write)
  -> "GPKG" (read/write)
  -> "SQLite" (read/write)
  -> "ODBC" (read/write)
  -> "WAsP" (read/write)
  -> "PGeo" (readonly)
  -> "MSSQLSpatial" (read/write)
  -> "PostgreSQL" (read/write)
  -> "MySQL" (read/write)
  -> "PCIDSK" (read/write)
  -> "OpenFileGDB" (readonly)
  -> "XPlane" (readonly)
  -> "AVCBin" (readonly)
  -> "AVCE00" (readonly)
  -> "DXF" (read/write)
  -> "Geoconcept" (read/write)
  -> "GeoRSS" (read/write)
  -> "GPSTrackMaker" (read/write)
  -> "VFK" (readonly)
  -> "PGDump" (read/write)
  -> "OSM" (readonly)
  -> "GPSBabel" (read/write)
  -> "SUA" (readonly)
  -> "OpenAir" (readonly)
  -> "PDS" (readonly)
  -> "WFS" (readonly)
  -> "HTF" (readonly)
  -> "AeronavFAA" (readonly)
  -> "Geomedia" (readonly)
  -> "EDIGEO" (readonly)
  -> "GFT" (read/write)
  -> "GME" (read/write)
  -> "SVG" (readonly)
  -> "CouchDB" (read/write)
  -> "Idrisi" (readonly)
  -> "ARCGEN" (readonly)
  -> "SEGUKOOA" (readonly)
  -> "SEGY" (readonly)
  -> "ODS" (read/write)
  -> "XLSX" (read/write)
  -> "ElasticSearch" (read/write)
  -> "PDF" (read/write)
  -> "Walk" (readonly)
  -> "CartoDB" (readonly)
  -> "SXF" (readonly)

C:\Program Files (x86)\GDAL\gdalplugins>

I am simply looking to read data from the SDE database with GDAL/OGR.

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Looks like I am trying to connect to ArcSDE version 10.2.1. Not sure if its even possible to connect to a 10+ SDE with GDAL.