Index: openacs-4/packages/acs-content-repository/tcl/revision-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-content-repository/tcl/revision-procs.tcl,v
diff -u -r1.22 -r1.23
--- openacs-4/packages/acs-content-repository/tcl/revision-procs.tcl	4 Jun 2006 00:45:23 -0000	1.22
+++ openacs-4/packages/acs-content-repository/tcl/revision-procs.tcl	1 Oct 2006 11:50:49 -0000	1.23
@@ -89,7 +89,11 @@
 			ns_set put [ns_conn outputheaders] "Content-Length" 0
 			ns_return 200 text/plain {}
 		    } else {
-			ns_returnfile 200 $mime_type $filename
+                        if {[info procs ad_returnfile_background] eq ""} {
+                            ns_returnfile 200 $mime_type $filename
+                        } else {
+                            ad_returnfile_background 200 $mime_type $filename
+                        }
 		    }
 		}
 	    }