Hi Bhaskar, just want to add that I got the same error as you and following Martin's procedure in that e-mail the problem is fixed. Yong Martin Morgan wrote: > On 06/09/2010 10:58 PM, Bhaskar Dutta wrote: >> Hi, >> >> I am trying to use Rgraphviz package from Bioconductor. After >> installing the package when I use the command "library("Rgraphviz")" I >> am getting the following error message in a popup window: This >> application has failed to start because libcdt-4.dll was not found. >> Re-installing the application may fix this problem. I have tried >> reinstalling the application multiple times but keep receiving the >> same error message. I'm a newbie in Bioconductor and any helpful >> advice would be appreciated. > > Hi Bhaskar -- > > This email > > https://stat.ethz.ch/pipermail/bioconductor/2010-June/033844.html > > might help. > > Martin > > >> Thanks >> Bhaskar >> >