diff --git a/src/server/slavefuncs.c b/src/server/slavefuncs.c
--- a/src/server/slavefuncs.c
+++ b/src/server/slavefuncs.c
@@ -34,6 +34,7 @@
 #include <archive.h>
 #include <archive_entry.h>
 
+#include <ctype.h>
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
@@ -48,6 +49,11 @@
 #define DEBUG 0
 
 
+void stringToUpper(char *string){
+  while(*string != '\0') {
+    *string = toupper((unsigned char)*string);
+  }
+}
 
 /**
    Grabs the xml DOM node reached by an XPath.
@@ -258,14 +264,23 @@ return 1; // Success
 /* Executors */
 
 /** Executor function for Blender operations */
-int exec_blender(char *input, char *output, int frame)
+int exec_blender(char *input, char *output, char *outputExt, int xres, int yres, int frame)
 {
   int ret;
+
+  stringToUpper(outputExt);
+
   char *frame_str;
   _distren_asprintf(&frame_str, "%i", frame);
 
+  char *xres_str;
+  _distren_asprintf(&xres_str, "%i", xres);
+
+  char *yres_str;
+  _distren_asprintf(&yres_str, "%i", yres);
+
   char *command = "blender"; // @TODO: We currently expect this to be in PATH
-  char *cmd[] = { command, "-b", input, "-o", output, "-f", frame_str, "-t", "0", (char *)NULL }; // arguments for blender
+  char *cmd[] = { command, "-b", input, "-o", output, "-F", outputExt, "-f", frame_str, "-t", "0", (char *)NULL }; // arguments for blender
 
   if(DEBUG)
     fprintf(stderr,"Preparing to execute command: %s -b %s -o %s -f %s\n", command, input, output, frame_str);
@@ -649,7 +664,8 @@ void _web_startframe(int slavekey, char 
     free(data.memory);
 }
 
-int _web_getwork(int slavekey, char *slavepass, int *jobnum, int *framenum){
+/** @TODO: Needs to get xres, yres, outpuext */
+int _web_getwork(int slavekey, char *slavepass, int *jobnum, int *framenum, int *xres, int *yres, char *outputext){
   char *url;
   _distren_asprintf(&url,"http://distren.org/slave/act.php?mode=getwork&slavekey=%d&slavepass=%s", slavekey, slavepass);
   struct _web_memorystruct data = _web_getrequest(url);
@@ -660,12 +676,12 @@ int _web_getwork(int slavekey, char *sla
     return 0;
   }
   else if(!strcmp(data.memory, "ERROR_BADKEY")){
-    fprintf(stderr,"*** Slave %d does not exist!\n",slavekey);
+    fprintf(stderr,"*** Slave %d does not exist! Check your slave ID, or register your slave on distren.org\n",slavekey);
     free(data.memory);
     return 0;
   }
   else if(!strcmp(data.memory, "ERROR_NORENDERPOWER")){
-    fprintf(stderr,"*** Render power not set! Please invoke distrensimpleslave -r to run the benchmark!\n",slavekey);
+    fprintf(stderr,"*** Render power not set! Please invoke distrensimpleslave -r to run the benchmark!\n");
     free(data.memory);
     return 0;
   }
@@ -675,17 +691,36 @@ int _web_getwork(int slavekey, char *sla
     char *serverversion;
 
     tmp = strtok (data.memory,",,");
-    if(tmp != NULL){ // make sure work is available
-      *jobnum = atoi(tmp);
+    if(tmp != NULL) { // make sure work is available
+      *jobnum = atoi(tmp); // Grab jobnum
+
       tmp = strtok (NULL, ",");
       if(tmp == NULL)
         return 0; // no work
-      *framenum = atoi(tmp);
+      *framenum = atoi(tmp); // Grab framenum
+
       tmp = strtok (NULL, ",");
       if(tmp == NULL)
         return 0; // no work
       serverversion = tmp;
 
+      tmp = strtok (NULL, ",");
+      if(tmp == NULL)
+        return 0; // no work
+      *xres = atoi(tmp);
+
+      tmp = strtok (NULL, ",");
+      if(tmp == NULL)
+        return 0; // no work
+      *yres = atoi(tmp);
+
+      tmp = strtok (NULL, ",");
+      if(tmp == NULL)
+        return 0; // no work
+      outputext = tmp;
+
+      // @FIXME: Setting outputext and serverversion = temp; will this cause issues as these are pointers to parts of the original temp var?
+
       // @TODO: This should be called every time, not just on fail.
       if(strcmp(PACKAGE_VERSION,serverversion)){
         fprintf(stderr,"Your distren package is out of date! Please acquire a newer version. (%s local vs %s remote)\n", PACKAGE_VERSION, serverversion);