When executing the TFS Plugin from a Linux master to a Windows 7 slave I am getting the following error:

17:00:52 [EnvInject] - Loading node environment variables.
17:00:53 Building remotely on VMWAYQA09 in workspace C:\jenkins-slave\workspace\AUT-Geb-Demo
17:00:53 [AUT-Geb-Demo] $ tf workspaces -format:brief -server:http://<server>:8080/tfs/2x ********
17:00:53 java.io.IOException: Cannot run program "tf" (in directory "C:\jenkins-slave\workspace\AUT-Geb-Demo"): CreateProcess error=2, The system cannot find the file specified
17:00:53 at java.lang.ProcessBuilder.start(ProcessBuilder.java:460)
17:00:53 at hudson.Proc$LocalProc.<init>(Proc.java:244)
17:00:53 at hudson.Proc$LocalProc.<init>(Proc.java:216)
17:00:53 at hudson.Launcher$LocalLauncher.launch(Launcher.java:773)
17:00:53 at hudson.Launcher$ProcStarter.start(Launcher.java:353)
17:00:53 at hudson.Launcher$RemoteLaunchCallable.call(Launcher.java:998)
17:00:53 at hudson.Launcher$RemoteLaunchCallable.call(Launcher.java:965)
17:00:53 at hudson.remoting.UserRequest.perform(UserRequest.java:118)
17:00:53 at hudson.remoting.UserRequest.perform(UserRequest.java:48)
17:00:53 at hudson.remoting.Request$2.run(Request.java:328)
17:00:53 at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
17:00:53 at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
17:00:53 at java.util.concurrent.FutureTask.run(FutureTask.java:138)
17:00:53 at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
17:00:53 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
17:00:53 at hudson.remoting.Engine$1$1.run(Engine.java:63)
17:00:53 at java.lang.Thread.run(Thread.java:662)
17:00:53 Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
17:00:53 at java.lang.ProcessImpl.create(Native Method)
17:00:53 at java.lang.ProcessImpl.<init>(ProcessImpl.java:81)
17:00:53 at java.lang.ProcessImpl.start(ProcessImpl.java:30)
17:00:53 at java.lang.ProcessBuilder.start(ProcessBuilder.java:453)
17:00:53 ... 16 more
17:00:53 Finished: FAILURE