diff --git a/src/d_clisrv.c b/src/d_clisrv.c
index a19c4a1a..841bbb13 100644
--- a/src/d_clisrv.c
+++ b/src/d_clisrv.c
@@ -1117,6 +1117,7 @@ typedef enum
 	CL_DOWNLOADFILES,
 	CL_ASKJOIN,
 	CL_LOADFILES,
+	CL_SETUPFILES,
 	CL_WAITJOINRESPONSE,
 #ifdef JOININGAME
 	CL_DOWNLOADSAVEGAME,
@@ -1228,6 +1229,9 @@ static inline void CL_DrawConnectionStatus(void)
 			case CL_CONFIRMCONNECT:
 				cltext = "";
 				break;
+			case CL_SETUPFILES:
+				cltext = M_GetText("Configuring addons...");
+				break;
 			case CL_ASKJOIN:
 			case CL_WAITJOINRESPONSE:
 				if (serverisfull)
@@ -2429,7 +2433,12 @@ static boolean CL_ServerConnectionTicker(const char *tmpsave, tic_t *oldtic, tic
 			cl_mode = CL_LOADFILES;
 			break;
 		case CL_LOADFILES:
-			if (CL_LoadServerFiles())
+			if (CL_LoadServerFiles()) 
+				cl_mode = CL_SETUPFILES;
+
+			break;
+		case CL_SETUPFILES:
+			if (P_PartialAddGetStage() < 0 || P_MultiSetupWadFiles(false))
 			{
 				*asksent = 0; //This ensure the first join ask is right away
 				firstconnectattempttime = I_GetTime();
@@ -2635,7 +2644,11 @@ static void CL_ConnectToServer(void)
 #else
 		if (!CL_ServerConnectionTicker((char*)NULL, &oldtic, (tic_t *)NULL))
 #endif
+		{
+			if (P_PartialAddGetStage() >= 0)
+				P_MultiSetupWadFiles(true); // in case any partial adds were done
 			return;
+		}
 
 		if (server)
 		{
diff --git a/src/d_netfil.c b/src/d_netfil.c
index 01a43fa4..8f46c045 100644
--- a/src/d_netfil.c
+++ b/src/d_netfil.c
@@ -486,7 +486,7 @@ boolean CL_LoadServerFiles(void)
 			continue; // Already loaded
 		else if (fileneeded[i].status == FS_FOUND)
 		{
-			P_AddWadFile(fileneeded[i].filename);
+			P_PartialAddWadFile(fileneeded[i].filename);
 			G_SetGameModified(true, false);
 			fileneeded[i].status = FS_OPEN;
 			return false;
diff --git a/src/dehacked.c b/src/dehacked.c
index 9bf5f43d..168d6525 100644
--- a/src/dehacked.c
+++ b/src/dehacked.c
@@ -2641,109 +2641,6 @@ static void readconditionset(MYFILE *f, UINT8 setnum)
 	Z_Free(s);
 }
 
-static void readtexture(MYFILE *f, const char *name)
-{
-	char *s = Z_Malloc(MAXLINELEN, PU_STATIC, NULL);
-	char *word;
-	char *word2;
-	char *tmp;
-	INT32 i, j, value;
-	UINT16 width = 0, height = 0;
-	INT16 patchcount = 0;
-	texture_t *texture;
-
-	do
-	{
-		if (myfgets(s, MAXLINELEN, f))
-		{
-			if (s[0] == '\n')
-				break;
-
-			tmp = strchr(s, '#');
-			if (tmp)
-				*tmp = '\0';
-
-			value = searchvalue(s);
-			word = strtok(s, " ");
-			if (word)
-				strupr(word);
-			else
-				break;
-
-			word2 = strtok(NULL, " ");
-			if (word2)
-				strupr(word2);
-			else
-				break;
-
-			// Width of the texture.
-			if (fastcmp(word, "WIDTH"))
-			{
-				DEH_WriteUndoline(word, va("%d", width), UNDO_NONE);
-				width = SHORT((UINT16)value);
-			}
-			// Height of the texture.
-			else if (fastcmp(word, "HEIGHT"))
-			{
-				DEH_WriteUndoline(word, va("%d", height), UNDO_NONE);
-				height = SHORT((UINT16)value);
-			}
-			// Number of patches the texture has.
-			else if (fastcmp(word, "NUMPATCHES"))
-			{
-				DEH_WriteUndoline(word, va("%d", patchcount), UNDO_NONE);
-				patchcount = SHORT((UINT16)value);
-			}
-			else
-				deh_warning("readtexture: unknown word '%s'", word);
-		}
-	} while (!myfeof(f));
-
-	// Error checking.
-	if (!width)
-		I_Error("Texture %s has no width!\n", name);
-
-	if (!height)
-		I_Error("Texture %s has no height!\n", name);
-
-	if (!patchcount)
-		I_Error("Texture %s has no patches!\n", name);
-
-	// Allocate memory for the texture, and fill in information.
-	texture = Z_Calloc(sizeof(texture_t) + (sizeof(texpatch_t) * SHORT(patchcount)), PU_STATIC, NULL);
-	M_Memcpy(texture->name, name, sizeof(texture->name));
-	texture->width = width;
-	texture->height = height;
-	texture->patchcount = patchcount;
-	texture->holes = false;
-	// Fill out the texture patches, to allow them to be detected
-	// accurately by readpatch.
-	for (i = 0; i < patchcount; i++)
-	{
-		texture->patches[i].originx = 0;
-		texture->patches[i].originy = 0;
-		texture->patches[i].wad = UINT16_MAX;
-		texture->patches[i].lump = UINT16_MAX;
-	}
-
-	// Jump to the next empty texture entry.
-	i = 0;
-	while (textures[i])
-		i++;
-
-	// Fill the global texture buffer entries.
-	j = 1;
-	while (j << 1 <= texture->width)
-		j <<= 1;
-
-	textures[i] = texture;
-	texturewidthmask[i] = j - 1;
-	textureheight[i] = texture->height << FRACBITS;
-
-	// Clean up.
-	Z_Free(s);
-}
-
 static void readpatch(MYFILE *f, const char *name, UINT16 wad)
 {
 	char *s = Z_Malloc(MAXLINELEN, PU_STATIC, NULL);
@@ -3350,14 +3247,7 @@ static void DEH_LoadDehackedFile(MYFILE *f, UINT16 wad)
 				if (word2[strlen(word2)-1] == '\n')
 					word2[strlen(word2)-1] = '\0';
 				i = atoi(word2);
-				if (fastcmp(word, "TEXTURE"))
-				{
-					// Read texture from spec file.
-					readtexture(f, word2);
-					DEH_WriteUndoline(word, word2, UNDO_HEADER);
-					// This is not a major mod.
-				}
-				else if (fastcmp(word, "PATCH"))
+				if (fastcmp(word, "PATCH"))
 				{
 					// Read patch from spec file.
 					readpatch(f, word2, wad);
diff --git a/src/p_setup.c b/src/p_setup.c
index 328a3ff3..54504f4b 100644
--- a/src/p_setup.c
+++ b/src/p_setup.c
@@ -143,6 +143,12 @@ mapthing_t *playerstarts[MAXPLAYERS];
 mapthing_t *bluectfstarts[MAXPLAYERS];
 mapthing_t *redctfstarts[MAXPLAYERS];
 
+// Global state for PartialAddWadFile/MultiSetupWadFiles
+// Might be replacable with parameters, but non-trivial when the functions are called on separate tics
+static SINT8 partadd_stage = -1;
+static boolean partadd_replacescurrentmap = false;
+static boolean partadd_important = false;
+
 /** Logs an error about a map being corrupt, then terminate.
   * This allows reporting highly technical errors for usefulness, without
   * confusing a novice map designer who simply needs to run ZenNode.
@@ -3438,23 +3444,39 @@ boolean P_RunSOC(const char *socfilename)
 // replace sounds, musics, patches, textures, sprites and maps
 //
 boolean P_AddWadFile(const char *wadfilename)
+{
+	UINT16 wadnum;
+
+	if ((wadnum = P_PartialAddWadFile(wadfilename)) == UINT16_MAX)
+		return false;
+
+	P_MultiSetupWadFiles(true);
+	return true;
+}
+
+//
+// Add a WAD file and do the per-WAD setup stages.
+// Call P_MultiSetupWadFiles as soon as possible after any number of these.
+//
+UINT16 P_PartialAddWadFile(const char *wadfilename)
 {
 	size_t i, j, sreplaces = 0, mreplaces = 0, digmreplaces = 0;
 	UINT16 numlumps, wadnum;
 	char *name;
-	lumpinfo_t *lumpinfo;
-	boolean texturechange = false;
 	boolean mapsadded = false;
-	boolean replacedcurrentmap = false;
+	lumpinfo_t *lumpinfo;
 
 	if ((numlumps = W_InitFile(wadfilename)) == INT16_MAX)
 	{
 		refreshdirmenu |= REFRESHDIR_NOTLOADED;
 		CONS_Printf(M_GetText("Errors occurred while loading %s; not added.\n"), wadfilename);
-		return false;
+		return UINT16_MAX;
 	}
 	else wadnum = (UINT16)(numwadfiles-1);
 
+	if (wadfiles[wadnum]->important)
+		partadd_important = true;
+
 	//
 	// search for sound replacements
 	//
@@ -3488,14 +3510,6 @@ boolean P_AddWadFile(const char *wadfilename)
 			CONS_Debug(DBG_SETUP, "Music %.8s replaced\n", name);
 			digmreplaces++;
 		}
-#if 0
-		//
-		// search for texturechange replacements
-		//
-		else if (!memcmp(name, "TEXTURE1", 8) || !memcmp(name, "TEXTURE2", 8)
-			|| !memcmp(name, "PNAMES", 6))
-#endif
-			texturechange = true;
 	}
 	if (!devparm && sreplaces)
 		CONS_Printf(M_GetText("%s sounds replaced\n"), sizeu1(sreplaces));
@@ -3504,28 +3518,12 @@ boolean P_AddWadFile(const char *wadfilename)
 	if (!devparm && digmreplaces)
 		CONS_Printf(M_GetText("%s digital musics replaced\n"), sizeu1(digmreplaces));
 
-
 	//
 	// search for sprite replacements
 	//
 	R_AddSpriteDefs(wadnum);
 
-	// Reload it all anyway, just in case they
-	// added some textures but didn't insert a
-	// TEXTURE1/PNAMES/etc. list.
-	if (texturechange) // initialized in the sound check
-		R_LoadTextures(); // numtexture changes
-	else
-		R_FlushTextureCache(); // just reload it from file
-
-	// Reload ANIMATED / ANIMDEFS
-	P_InitPicAnims();
-
-	// Flush and reload HUD graphics
-	ST_UnloadGraphics();
-	HU_LoadGraphics();
-	ST_LoadGraphics();
-	ST_ReloadSkinFaceGraphics();
+	// everything from MultiSetupWadFile until ST_Start was here originally
 
 	//
 	// look for skins
@@ -3560,9 +3558,8 @@ boolean P_AddWadFile(const char *wadfilename)
 				mapheaderinfo[num-1]->menuflags |= LF2_EXISTSHACK;
 			}
 
-			//If you replaced the map you're on, end the level when done.
 			if (num == gamemap)
-				replacedcurrentmap = true;
+				partadd_replacescurrentmap = true;
 
 			CONS_Printf("%s\n", name);
 			mapsadded = true;
@@ -3571,24 +3568,85 @@ boolean P_AddWadFile(const char *wadfilename)
 	if (!mapsadded)
 		CONS_Printf(M_GetText("No maps added\n"));
 
-	// reload status bar (warning should have valid player!)
-	if (gamestate == GS_LEVEL)
-		ST_Start();
+	refreshdirmenu &= ~REFRESHDIR_GAMEDATA; // Under usual circumstances we'd wait for REFRESHDIR_GAMEDATA to disappear the next frame, but it's a bit too dangerous for that...
+	partadd_stage = 0;
+	return wadnum;
+}
 
-	// Prevent savefile cheating
-	if (cursaveslot >= 0)
-		cursaveslot = -1;
+// Only exists to make sure there's no way to overwrite partadd_stage externally
+// unless you really push yourself.
+SINT8 P_PartialAddGetStage(void) {
+	return partadd_stage;
+}
 
-	if (replacedcurrentmap && gamestate == GS_LEVEL && (netgame || multiplayer))
+//
+// Set up a series of partially added WAD files.
+// Setup functions that iterate over every loaded WAD go here.
+// If fullsetup false, only do one stage per call.
+//
+boolean P_MultiSetupWadFiles(boolean fullsetup)
+{
+	if (partadd_stage < 0)
+		I_Error(M_GetText("Post-load addon setup attempted without loading any addons first"));
+
+	if (partadd_stage == 0)
 	{
-		CONS_Printf(M_GetText("Current map %d replaced by added file, ending the level to ensure consistency.\n"), gamemap);
-		if (server)
-			SendNetXCmd(XD_EXITLEVEL, NULL, 0);
+		// Flush and reload HUD graphics
+		ST_UnloadGraphics();
+		HU_LoadGraphics();
+		ST_LoadGraphics();
+		ST_ReloadSkinFaceGraphics();
+
+		if (!partadd_important)
+			partadd_stage = -1; // everything done
+		else if (fullsetup)
+			++partadd_stage; // run next stage too
 	}
 
-	refreshdirmenu &= ~REFRESHDIR_GAMEDATA; // Under usual circumstances we'd wait for REFRESHDIR_GAMEDATA to disappear the next frame, but it's a bit too dangerous for that...
+	if (partadd_stage == 1)
+	{
+		// Reload all textures, unconditionally for better or worse.
+		R_LoadTextures();
 
-	return true;
+		if (fullsetup)
+			++partadd_stage;
+	}
+
+	if (partadd_stage == 2)
+	{
+		// Reload ANIMATED / ANIMDEFS
+		P_InitPicAnims();
+
+		// reload status bar (warning should have valid player!)
+		if (gamestate == GS_LEVEL)
+			ST_Start();
+
+		// Prevent savefile cheating
+		if (cursaveslot >= 0)
+			cursaveslot = -1;
+
+		if (partadd_replacescurrentmap && gamestate == GS_LEVEL && (netgame || multiplayer))
+		{
+			CONS_Printf(M_GetText("Current map %d replaced, ending the level to ensure consistency.\n"), gamemap);
+			if (server)
+				SendNetXCmd(XD_EXITLEVEL, NULL, 0);
+		}
+		partadd_stage = -1;
+	}
+
+	I_Assert(!fullsetup || partadd_stage < 0);
+
+	if (partadd_stage < 0)
+	{
+		partadd_important = false;
+		partadd_replacescurrentmap = false;
+		return true;
+	}
+	else
+	{
+		++partadd_stage;
+		return false;
+	}
 }
 
 #ifdef DELFILE
diff --git a/src/p_setup.h b/src/p_setup.h
index c4a3aab9..5ff53e13 100644
--- a/src/p_setup.h
+++ b/src/p_setup.h
@@ -64,6 +64,26 @@ boolean P_AddWadFile(const char *wadfilename);
 #ifdef DELFILE
 boolean P_DelWadFile(void);
 #endif
+
+// WARNING: The following functions should be grouped as follows:
+// any amount of PartialAdds followed by MultiSetups until returned true,
+// as soon as possible.
+UINT16 P_PartialAddWadFile(const char *wadfilename);
+// Run a single stage of multisetup, or all of them if fullsetup set.
+//   fullsetup true: run everything
+//   otherwise
+//   stage 0: reload UI graphics (enough for unimportant WADs)
+//   stage 1: reload textures
+//   stage 2: reload animdefs and run post-setup actions
+// returns true if setup finished on this call, false otherwise (always true on fullsetup)
+// throws I_Error if called without any partial adds started as a safeguard
+boolean P_MultiSetupWadFiles(boolean fullsetup);
+// Get the current setup stage.
+//   if negative, no PartialAdds done since last MultiSetup
+//   if 0, partial adds done but MultiSetup not called yet
+//   if positive, setup's partway done
+SINT8 P_PartialAddGetStage(void);
+
 boolean P_RunSOC(const char *socfilename);
 void P_WriteThings(lumpnum_t lump);
 size_t P_PrecacheLevelFlats(void);
diff --git a/src/r_data.c b/src/r_data.c
index 43bc6ed8..5fe40e06 100644
--- a/src/r_data.c
+++ b/src/r_data.c
@@ -503,42 +503,31 @@ void R_LoadTextures(void)
 			}
 			patchlump = W_CacheLumpNumPwad((UINT16)w, texstart + j, PU_CACHE);
 
-			// Then, check the lump directly to see if it's a texture SOC,
-			// and if it is, load it using dehacked instead.
-			if (strstr((const char *)patchlump, "TEXTURE"))
-			{
-				CONS_Alert(CONS_WARNING, "%s is a Texture SOC.\n", W_CheckNameForNumPwad((UINT16)w,texstart+j));
-				Z_Unlock(patchlump);
-				DEH_LoadDehackedLumpPwad((UINT16)w, texstart + j);
-			}
-			else
-			{
-				//CONS_Printf("\n\"%s\" is a single patch, dimensions %d x %d",W_CheckNameForNumPwad((UINT16)w,texstart+j),patchlump->width, patchlump->height);
-				texture = textures[i] = Z_Calloc(sizeof(texture_t) + sizeof(texpatch_t), PU_STATIC, NULL);
+			//CONS_Printf("\n\"%s\" is a single patch, dimensions %d x %d",W_CheckNameForNumPwad((UINT16)w,texstart+j),patchlump->width, patchlump->height);
+			texture = textures[i] = Z_Calloc(sizeof(texture_t) + sizeof(texpatch_t), PU_STATIC, NULL);
 
-				// Set texture properties.
-				M_Memcpy(texture->name, W_CheckNameForNumPwad((UINT16)w, texstart + j), sizeof(texture->name));
-				texture->width = SHORT(patchlump->width);
-				texture->height = SHORT(patchlump->height);
-				texture->patchcount = 1;
-				texture->holes = false;
+			// Set texture properties.
+			M_Memcpy(texture->name, W_CheckNameForNumPwad((UINT16)w, texstart + j), sizeof(texture->name));
+			texture->width = SHORT(patchlump->width);
+			texture->height = SHORT(patchlump->height);
+			texture->patchcount = 1;
+			texture->holes = false;
 
-				// Allocate information for the texture's patches.
-				patch = &texture->patches[0];
+			// Allocate information for the texture's patches.
+			patch = &texture->patches[0];
 
-				patch->originx = patch->originy = 0;
-				patch->wad = (UINT16)w;
-				patch->lump = texstart + j;
+			patch->originx = patch->originy = 0;
+			patch->wad = (UINT16)w;
+			patch->lump = texstart + j;
 
-				Z_Unlock(patchlump);
+			Z_Unlock(patchlump);
 
-				k = 1;
-				while (k << 1 <= texture->width)
-					k <<= 1;
+			k = 1;
+			while (k << 1 <= texture->width)
+				k <<= 1;
 
-				texturewidthmask[i] = k - 1;
-				textureheight[i] = texture->height << FRACBITS;
-			}
+			texturewidthmask[i] = k - 1;
+			textureheight[i] = texture->height << FRACBITS;
 			i++;
 		}
 	}