diff --git a/engine/common/pr_common.h b/engine/common/pr_common.h
new file mode 100644
index 000000000..725dfcc21
--- /dev/null
+++ b/engine/common/pr_common.h
@@ -0,0 +1,187 @@
+
+void PF_InitTempStrings(progfuncs_t *prinst);
+string_t PR_TempString(progfuncs_t *prinst, char *str);	//returns a tempstring containing str
+char *PF_TempStr(progfuncs_t *prinst);	//returns a tempstring which can be filled in with whatever junk you want.
+
+#define	RETURN_SSTRING(s) (((int *)pr_globals)[OFS_RETURN] = PR_SetString(prinst, s))	//static - exe will not change it.
+#define MAX_TEMPSTRS	((int)pr_tempstringcount.value)
+#define MAXTEMPBUFFERLEN	((int)pr_tempstringsize.value)
+extern cvar_t pr_tempstringsize;
+extern cvar_t pr_tempstringcount;
+
+int MP_TranslateFTEtoDPCodes(int code);
+
+//pr_cmds.c builtins that need to be moved to a common.
+void VARGS PR_BIError(progfuncs_t *progfuncs, char *format, ...);
+void PF_print (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_dprint (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_error (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_rint (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_floor (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_ceil (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_Tokenize  (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_ArgV  (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_FindString (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_FindFloat (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_nextent (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_randomvector (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_Sin (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_Cos (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_Sqrt (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_bound (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_strlen(progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_strcat (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_ftos (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_fabs (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_vtos (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_etos (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_stof (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_mod (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_substring (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_stov (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_dupstring(progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_forgetstring(progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_Spawn (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_min (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_max (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_registercvar (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_pow (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_chr2str (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_localcmd (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_random (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_fopen (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_fclose (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_fputs (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_fgets (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_normalize (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_vlen (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_vectoyaw (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_vectoangles (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_findchain (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_findchainfloat (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_coredump (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_traceon (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_traceoff (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_eprint (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void search_close_progs(progfuncs_t *prinst, qboolean complain);
+void PF_search_begin (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_search_end (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_search_getsize (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_search_getfilename (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+
+void PR_fclose_progs (progfuncs_t *prinst);
+char *PF_VarString (progfuncs_t *prinst, int	first, struct globalvars_s *pr_globals);
+
+
+
+
+
+
+
+
+//pr_cmds.c builtins that need to be moved to a common.
+void VARGS PR_BIError(progfuncs_t *progfuncs, char *format, ...);
+void PF_cvar_string (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_cvar_set (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_print (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_dprint (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_error (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_rint (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_floor (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_ceil (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_Tokenize  (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_ArgV  (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_FindString (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_FindFloat (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_nextent (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_randomvec (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_Sin (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_Cos (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_Sqrt (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_bound (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_strlen(progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_strcat (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_ftos (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_fabs (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_vtos (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_etos (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_stof (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_mod (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_substring (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_stov (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_dupstring(progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_forgetstring(progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_Spawn (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_min (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_max (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_registercvar (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_pow (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_chr2str (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_localcmd (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_random (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_randomvector (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_fopen (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_fclose (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_fputs (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_fgets (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_normalize (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_vlen (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_vectoyaw (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_vectoangles (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_FindFlags (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_findchain (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_findchainfloat (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_findchainflags (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_coredump (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_traceon (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_traceoff (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_eprint (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_bitshift(progfuncs_t *prinst, struct globalvars_s *pr_globals);
+
+void PF_registercvar (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_Abort(progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_externcall (progfuncs_t *prinst, globalvars_t *pr_globals);
+void PF_externrefcall (progfuncs_t *prinst, globalvars_t *pr_globals);
+void PF_externvalue (progfuncs_t *prinst, globalvars_t *pr_globals);
+void PF_externset (progfuncs_t *prinst, globalvars_t *pr_globals);
+void PF_instr (progfuncs_t *prinst, globalvars_t *pr_globals);
+
+void PF_strstrofs (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_str2chr (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_chr2str (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_strconv (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_infoadd (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_infoget (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_strncmp (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_strcasecmp (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_strncasecmp (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_strpad (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+
+//these functions are from pr_menu.dat
+void PF_CL_is_cached_pic (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_CL_precache_pic (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_CL_free_pic (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_CL_drawcharacter (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_CL_drawstring (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_CL_drawpic (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_CL_drawline (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_CL_drawfill (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_CL_drawsetcliparea (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_CL_drawresetcliparea (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_CL_drawgetimagesize (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+
+void PF_cl_keynumtostring (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_cl_stringtokeynum(progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_cl_getkeybind (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+
+void search_close_progs(progfuncs_t *prinst, qboolean complain);
+void PF_search_begin (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_search_end (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_search_getsize (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+void PF_search_getfilename (progfuncs_t *prinst, struct globalvars_s *pr_globals);
+
+
+void PF_fclose_progs (progfuncs_t *prinst);
+char *PF_VarString (progfuncs_t *prinst, int	first, struct globalvars_s *pr_globals);
+int QCEditor (progfuncs_t *prinst, char *filename, int line, int nump, char **parms);
+