I am Dale Hayter, a Microsoft and VMware certified Technical Consultant.

My blog has been built up over the years from my experience of working on an IT helpdesk and also from being out on-site.

VMware Tools Error in the RPC receive loop, RpcIn Unable to send

When running VMware tools 5.1, if more than 2 sessions are logged into a terminal server or Citrix server you might see loads of error messages in the event logs.

Event ID : 1000
Source : VMware Tools


[Warning][vmusr:vmusr] Error in the RPC receive loop: RpcIn: Unable to send.


To resolve this issue you should update to ESXi 5.1 update 1 and update your VMware tools. If you cant do this but want to stop these messages there is a workaround.

1) Navigate to the Path Below :-

For Windows XP and Windows Server 2000/2003:

C:\Documents and Settings\All Users\Application Data\VMware\VMware Tools\

Windows Vista, Windows 7, and Windows Server 2008, Server 2012:

C:\ProgramData\VMware\VMware Tools\

2) You should see a file called tools.conf. Edit this file and add the code below to the bottom of the file.

vmusr.level = error

3) Save the file and then restart the VMware Tools service.

4) If the file doesn’t exist then just create a file with the content above in it. I’ve also made a file which you can download from here. Just put it in that location and restart the service.