diff -up texworks-0.4.1/src/TWApp.cpp.vine texworks-0.4.1/src/TWApp.cpp
--- texworks-0.4.1/src/TWApp.cpp.vine	2011-05-27 14:30:46.000000000 +0900
+++ texworks-0.4.1/src/TWApp.cpp	2011-06-18 19:00:11.782546333 +0900
@@ -835,6 +835,8 @@ void TWApp::setDefaultEngineList()
 	*engineList
 		<< Engine("LaTeXmk", "latexmk" EXE, QStringList("-e") << 
 				  "$pdflatex=q/pdflatex -synctex=1 %O %S/" << "-pdf" << "$fullname", true)
+		<< Engine("pdfpLaTeX", "pdfplatex" EXE, QStringList("$basename"), true)
+		<< Engine("pdfepLaTeX", "pdfeplatex" EXE, QStringList("$basename"), true)
 		<< Engine("pdfTeX", "pdftex" EXE, QStringList("$synctexoption") << "$fullname", true)
 		<< Engine("pdfLaTeX", "pdflatex" EXE, QStringList("$synctexoption") << "$fullname", true)
 		<< Engine("XeTeX", "xetex" EXE, QStringList("$synctexoption") << "$fullname", true)
@@ -842,7 +844,9 @@ void TWApp::setDefaultEngineList()
 		<< Engine("ConTeXt (LuaTeX)", "context" EXE, QStringList("--synctex") << "$fullname", true)
 		<< Engine("ConTeXt (pdfTeX)", "texexec" EXE, QStringList("--synctex") << "$fullname", true)
 		<< Engine("ConTeXt (XeTeX)", "texexec" EXE, QStringList("--synctex") << "--xtx" << "$fullname", true)
+		<< Engine("pBibTeX", "pbibtex" EXE, QStringList("$basename"), false)
 		<< Engine("BibTeX", "bibtex" EXE, QStringList("$basename"), false)
+		<< Engine("Mendex", "mendex" EXE, QStringList("$basename"), false)
 		<< Engine("MakeIndex", "makeindex" EXE, QStringList("$basename"), false);
 	defaultEngineIndex = 1;
 }

Diff finished.  Sat Jun 18 19:04:18 2011