diff --git a/API_GeoTransform.cpp b/API_GeoTransform.cpp
index 8f3c0bf..56d4230 100644
--- a/API_GeoTransform.cpp
+++ b/API_GeoTransform.cpp
@@ -19,6 +19,19 @@
 
 using namespace std ;
 
+//-------------------------------------------------------------------------------
+BOOL
+__stdcall EgtTransform( int nId, const double ptOrig[3],
+                        const double vX[3], const double vY[3], const double vZ[3], int nRefType)
+{
+   INTVECTOR vIds ;
+   vIds.push_back( nId) ;
+   Frame3d frFrame ;
+   if ( ! frFrame.Set( ptOrig, vX, vY, vZ))
+      return GDB_ID_NULL ;
+   return ExeTransform( vIds, frFrame, nRefType) ;
+}
+
 //-------------------------------------------------------------------------------
 BOOL
 __stdcall EgtMove( int nId, double vVtMove[3], int nRefType)
diff --git a/EgtInterface.rc b/EgtInterface.rc
index e0b7849..699b827 100644
Binary files a/EgtInterface.rc and b/EgtInterface.rc differ