Build target example to copy built assembly to a stash area "BinStash"

StashOutput

<?xml version="1.0" encoding="utf-8"?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
  <BuildDependsOn>
    $(BuildDependsOn);
    StashOutput;
  </BuildDependsOn>
  <BinStash>$(SolutionDir)Bin\</BinStash>
  <PostBuildEvent></PostBuildEvent>
</PropertyGroup>
<Target Name="StashOutput" Inputs="@(None);@(Content);$(OutDir)$(TargetFileName)" Outputs="$(BinStash)$(TargetFileName)">
  <MakeDir Directories="$(BinStash)" Condition="!Exists('$(BinStash)')" />
  <Copy SourceFiles="$(TargetDir)$(TargetFileName)" DestinationFolder="$(BinStash)" />
</Target>
</Project>