I set the parameter of PublishFolder to a centralized share as /p:PublishFolder="\\RemoteServerName\OfficialBuilds\Published\, but I got "\RemoteServerName\OfficialBuilds\Published\" in my MSBuild build file. Obviously, one backslash was dropped by the MSBuild plugin.

If I changed the setting to /p:PublishFolder="\\\RemoteServerName\OfficialBuilds\Published\, the right share folder path of "\\RemoteServerName\OfficialBuilds\Published\" was transferred to my MSBuild build file