When using Jenkins with MSBuild/MSTests, the output console and the plain text have encoding issues.
My OS is in French, so we use accents, which are not well displayed in Jenkins' MSBuild/MSTest output (see last line in the enclosed screenshot ; the word "Génération" became "G,n,ration")
The MS CMD output is said to be encoded in CP 850.
My Jenkins/SystemInfo, regarding encoding says :
sun.java.command C:\Program Files (x86)\Jenkins\jenkins.war --httpPort=8082 --ajp13Port=-1 -Dfile.encoding=UTF-8
I tried to use the "-Dfile.encoding=" argument with "UTF8","UTF-8", "Cp850" "ISO8859_1" but without any luck.
I guess as long as there will be differences between MSDOS/MSBuild's encoding and Jenkins' encoding, I won't be able to have proper outputs.