[GIS] Where can the GDAL executables be found in a QGIS installation

gdalqgis

I run QGIS 1.8.0 Lisboa on a Windows 7 machine. Yesterday I attempted to install the TauDEM plugin using these instructions: http://lists.osgeo.org/pipermail/qgis-developer/2012-June/020807.html

Since doing this the GDAL tools for QGIS do not work with error:

The process failed to start. Either the invoked program is missing, or
you may have insufficient permissions to invoke the program.

I understand this means they cannot find the GDAL executables. However, neither can I. Where actually are the GDAL executables in the QGIS folder? I assume I then have to add this manually to the Environmental Variables or into the GDAL tool settings in QGIS – is this correct?

PS. I can run GDAL tools through the OSGEO4W Shell so GDAL itself is alive and well.

Best Answer

They should be in the (C:\path_to\ )OSGeo4W\bin folder.