I'm not sure if there are specific options for the msbuild command, but maybe you could add a target to your project? You can create:
<Target Name=CleanServerFolders>
<Exec Command="psexec \\$(serverIP) -u $(serverUserName) -p $(serverUserPassword) del $(projectFolderOnServer)"
</Target>
PsExec, : http://technet.microsoft.com/en-us/sysinternals/bb897553. Microsoft, , .
msbuild ( ):
msbuild.exe /t:Build,CleanServerFolders,Deploy ...etc
.
<Project>
...
<Import Project="$(MSBuildBinPath)\Microsoft.VisualBasic.targets" />
<Target Name="AfterBuild"><CallTarget Targets="CleanServerFolders"/></Target>
</Project>
, Microsoft.VisualBasic.targets - .vbproj. #, Microsoft.CSharp.targets( MSDN)