Metapost labels do not work with MiKTeX 2.9

I have upgraded from MiKTeX 2.8 to 2.9. All the label commands that earlier worked in Metapost are not working anymore. I am using MiKTeX in conjunction with TeXnicCenter. The MetaPost version apparently is 1.803 (MiKTeX 2.9). I am compiling the MP file separately using mpost.exe, the build process used for compiling MP files is highlighted below.

Example code for MP file is

beginfig(1);

draw (0,0)--(2cm,3cm);
draw thelabel.lft(btex $m$ etex,(0,0));

endfig;
end;


The output status from compilation is as follows:

--------------------Output Profile: Metapost--------------------
Metapost> This is MetaPost, version 1.803 (MiKTeX 2.9)
Metapost> (mpost.mp (C:/Program Files (x86)/MiKTeX 2.9/metapost/base/plain.mp
Metapost> (C:/Vishnu/Miscellaneous/Metapost/Label problem/trial1.mp


Further each time compilation is carried out new files are created like mp880129.tex, mp80530.tex with the following content

\gdef\mpxshipout{\shipout\hbox\bgroup
\setbox0=\hbox\bgroup}
\dimen1=\ht0 \dimen2=\dp0
\setbox0=\hbox\bgroup
\box0
\ifnum\dimen0>0 \vrule width1sp height\dimen1 depth\dimen2
\else \vrule width1sp height1sp depth0sp\relax
\fi\egroup
\ht0=0pt \dp0=0pt \box0 \egroup}
\mpxshipout% line 4 C:/Vishnu/Miscellaneous/Metapost/Label problem/trial1.mp
$m$%
\stopmpxshipout
\end{document}


I request some help to resolve this issue. I have been unable to find a solution for too long now.

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Try mpost --debug and paste the result. Also, try to compile from command line tex mp880129 and see if it works (it should generate a .dvi file) – JLDiaz May 23 '14 at 22:26
The result generated using mpost --debug is as follows: – Vishnu May 23 '14 at 22:52
The result generated using mpost --debug is as follows: This is Metapost, version 1.803 (MiKTeX 2.9) (mpost.mp (C:/Program Files (x86)/MiKTeX 2.9/metapost/base/plain.mp Preloading the plain mem file, version 1.004)) (<working dir>/trial1.mpmakempx debug: <working dir>/trial1.mp: running command tex --parse-first-line --interaction=nonstopmode mp885472.tex makempx debug: C:/Vishnu/Miscellaneous/Metapost/Label problem/trial1.mp: 00203108 = fopen(C:/Program Files (x86)/MiKTeX 2.9/fonts/tfm/public/cm/cmmi10.tfm,"rb") [1])  The file still fails to compile properly. – Vishnu May 23 '14 at 22:57
Does the file C:/Program Files (x86)/MiKTeX 2.9/fonts/tfm/public/cm/cmmi10.tfm exist? Can you successfully run tex --parse-first-line --interaction=nonstopmode mp885472.tex? – JLDiaz May 23 '14 at 23:04
JLDiaz - Yes the file C:/Program Files (x86)/MiKTeX 2.9/fonts/tfm/public/cm/cmmi10.tfm exists. I can also successfully run the above command, however only the letter m (i.e. the label) is created in mp885472.dvi there is no sign of the line. The line isn't visible in resulting fig.1 file. – Vishnu May 23 '14 at 23:10

I have been able to work around the problem caused by MiKTeX 2.9. I have completely uninstalled MiKTeX 2.9 and installed TeX Live 2013 (I got the idea from Troy Henderson's webpage: http://www.tlhiv.org/mppreview/ which clearly states that it uses "MetaPost version 1.9 (TeX Live 2014/dev) (kpathsea version 6.2.0dev)"). However, I still face problems trying to integrate it with TeXnicCenter. I still need to execute Metapost files from command line invoking the command mpost filename.mp. But the command line option works without any hitches. I am able to incorporate all labels without any problems.

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