diff --git a/build/windows/installer/base_directories.isi b/build/windows/installer/base_directories.isi
deleted file mode 100644
index 55a350ddef..0000000000
--- a/build/windows/installer/base_directories.isi
+++ /dev/null
@@ -1,71 +0,0 @@
-//directories to source files from
-#define public
-
-#if !defined(VER_DIR)
-	#if defined(REVISION)
-		#define VER_DIR GIMP_VERSION + "-" + REVISION
-	#else
-		#define VER_DIR GIMP_VERSION
-	#endif
-#endif
-
-#ifndef DIR32
-#define DIR32 "i686-w64-mingw32"
-#endif
-#ifndef DIR64
-#define DIR64 "x86_64-w64-mingw32"
-#endif
-#ifndef DIRA64
-#define DIRA64 "aarch64-w64-mingw32"
-#endif
-
-#ifndef GIMP_DIR
-	#define GIMP_DIR "N:\gimp\output\" + VER_DIR
-#endif
-#ifndef DEPS_DIR
-	#define DEPS_DIR "N:\gimp\deps"
-#endif
-
-//32-bit GIMP base directory (result of make install)
-#ifndef GIMP_DIR32
-	#define GIMP_DIR32 GIMP_DIR + "\" + DIR32
-#endif
-//64-bit GIMP base directory (result of make install)
-#ifndef GIMP_DIR64
-	#define GIMP_DIR64 GIMP_DIR + "\" + DIR64
-#endif
-//AArch64 GIMP base directory (result of make install)
-#ifndef GIMP_DIRA64
-	#define GIMP_DIRA64 GIMP_DIR + "\" + DIR64
-#endif
-
-#ifndef DDIR32
-	#define DDIR32 DIR32
-#endif
-#ifndef DDIR64
-	#define DDIR64 DIR64
-#endif
-#ifndef DDIRA64
-	#define DDIRA64 DIRA64
-#endif
-
-//32-bit dependencies directory
-#ifndef DEPS_DIR32
-	#define DEPS_DIR32 DEPS_DIR + "\" + DDIR32
-#endif
-//64-bit dependencies directory
-#ifndef DEPS_DIR64
-	#define DEPS_DIR64 DEPS_DIR + "\" + DDIR64
-#endif
-//AArch64 dependencies directory
-#ifndef DEPS_DIR64
-	#define DEPS_DIRA64 DEPS_DIR + "\" + DDIRA64
-#endif
-
-#ifdef PYTHON
-
-	//python source directory
-	#ifndef PY_DIR
-		#define PY_DIR "N:\common\python2.7"
-	#endif
-#endif
diff --git a/build/windows/installer/base_gimp3264.iss b/build/windows/installer/base_gimp3264.iss
index b99463eec8..ed6a5d0c2b 100644
--- a/build/windows/installer/base_gimp3264.iss
+++ b/build/windows/installer/base_gimp3264.iss
@@ -86,7 +86,18 @@
 #define X64 2
 #define ARM64 3
 
-#include "base_directories.isi"
+#define GIMP_DIR32 GIMP_DIR + "\" + DIR32
+#define GIMP_DIR64 GIMP_DIR + "\" + DIR64
+#define GIMP_DIRA64 GIMP_DIR + "\" + DIR64
+
+#define DDIR32 DIR32
+#define DDIR64 DIR64
+#define DDIRA64 DIRA64
+
+#define DEPS_DIR32 DEPS_DIR + "\" + DDIR32
+#define DEPS_DIR64 DEPS_DIR + "\" + DDIR64
+#define DEPS_DIRA64 DEPS_DIR + "\" + DDIRA64
+
 
 #define MAJOR=Copy(GIMP_VERSION,1,Pos(".",GIMP_VERSION)-1)
 #define MINOR=Copy(GIMP_VERSION,Pos(".",GIMP_VERSION)+1)