diff --git a/aegisub/audio_provider_avs.cpp b/aegisub/audio_provider_avs.cpp
index d0fe8b151..09c5b0136 100644
--- a/aegisub/audio_provider_avs.cpp
+++ b/aegisub/audio_provider_avs.cpp
@@ -45,6 +45,7 @@
 #include "avisynth_wrap.h"
 #include "utils.h"
 #include "options.h"
+#include "standard_paths.h"
 
 
 ////////////////////////
@@ -131,7 +132,21 @@ void AvisynthAudioProvider::OpenAVSAudio() {
 			wxFileName fn(filename);
 			const char * argnames[3] = { 0, "video", "audio" };
 			AVSValue args[3] = { env->SaveString(fn.GetShortPath().mb_str(wxConvLocal)), false, true };
-			script = env->Invoke("DirectShowSource", AVSValue(args,3),argnames);
+
+			// Load DirectShowSource.dll from app dir if it exists
+			wxFileName dsspath(StandardPaths::DecodePath(_T("?data/DirectShowSource.dll")));
+			if (dsspath.FileExists()) {
+				env->Invoke("LoadPlugin",env->SaveString(dsspath.GetFullPath().mb_str(wxConvLocal)));
+			}
+
+			// Load audio with DSS if it exists
+			if (env->FunctionExists("DirectShowSource")) {
+				script = env->Invoke("DirectShowSource", AVSValue(args,3),argnames);
+			}
+			// Otherwise fail
+			else {
+				throw AvisynthError("No suitable audio source filter found. Try placing DirectShowSource.dll in the Aegisub application directory.");
+			}
 		}
 
 		LoadFromClip(script);
diff --git a/aegisub/video_provider_avs.cpp b/aegisub/video_provider_avs.cpp
index 3fe70d3c3..554427754 100644
--- a/aegisub/video_provider_avs.cpp
+++ b/aegisub/video_provider_avs.cpp
@@ -298,6 +298,15 @@ PClip AvisynthVideoProvider::OpenVideo(wxString _filename, bool mpeg2dec3_priori
 
 				// Try DirectShowSource
 				if (!dss2) {
+					// Load DirectShowSource.dll from app dir if it exists
+					wxFileName dsspath(StandardPaths::DecodePath(_T("?data/DirectShowSource.dll")));
+					if (dsspath.FileExists()) {
+						AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Loading DirectShowSource"));
+						env->Invoke("LoadPlugin",env->SaveString(dsspath.GetFullPath().mb_str(wxConvLocal)));
+						AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Loaded DirectShowSource"));
+					}
+
+					// Then try using DSS
 					if (env->FunctionExists("DirectShowSource")) {
 						if (fps == 0.0) {
 							const char *argnames[3] = { 0, "video", "audio" };