TeamCityPublishArtifacts MSBuild task not working with =>

Hi

I have two setup files on a network drive like this
\\filesystem\XX\QA\Setup.exe
\\filesystem\XX\QA\Other.files

\\filesystem\XX\Prod\Setup.exe

I would like to add the two setup-files as artifacts using the TeamCityPublishArtifacts MSBuild task to
"artifact-folder"\QA\Setup.exe and
"artifact-folder"\Prod\Setup.exe

What's the MSBuild command for this?

This doesn't work
<TeamCityPublishArtifacts SourceFiles="'\\filesystem\QA\Setup.exe' => QA" />
<TeamCityPublishArtifacts SourceFiles="'\\filesystem\Prod\Setup.exe' => Prod" />