Index: AE/installer2/src/net/oni2/aeinstaller/backend/oni/Installer.java
===================================================================
--- AE/installer2/src/net/oni2/aeinstaller/backend/oni/Installer.java	(revision 663)
+++ AE/installer2/src/net/oni2/aeinstaller/backend/oni/Installer.java	(revision 664)
@@ -402,10 +402,12 @@
 			if (!(new File(targetPath, "ignore.txt").exists())) {
 				for (File fbsl : f.listFiles()) {
-					File targetFile = new File(targetPath, fbsl.getName());
-					if (addon || !targetFile.exists()) {
-						try {
-							FileUtils.copyFile(fbsl, targetFile);
-						} catch (IOException e) {
-							e.printStackTrace();
+					if (fbsl.getName().toLowerCase().endsWith(".bsl")) {
+						File targetFile = new File(targetPath, fbsl.getName());
+						if (addon || !targetFile.exists()) {
+							try {
+								FileUtils.copyFile(fbsl, targetFile);
+							} catch (IOException e) {
+								e.printStackTrace();
+							}
 						}
 					}