I have a "cluster" of 4 maschines and everytime the Hashview Head will assign work to one of the remote agents I get following error on the agent

Normal Logout:
{"status"=>200, "type"=>"message", "msg"=>"OK"}
HEARTBEETING

{"status"=>200, "type"=>"message", "msg"=>"START", "task_id"=>"13"}
HEARTBEETING
you need to download Smart Wordlist = e3b0c4.....52b855 //shortened
Downloading...
Unpacking....
Calculating checksum

Then the Error:
/opt/hashview-agent/background_worker.rb:364:in block in sync_wordlists': undefined local variable or method checksum' for main:Object (NameError) from /opt/hashview-agent/background_worker.rb:325:in each'
from /opt/hashview-agent/background_worker.rb:325:in sync_wordlists' from /opt/hashview-agent/background_worker.rb:445:in <top (required)>'
from agent.rb:18:in require_relative' from agent.rb:18:in

I synced rules and wordlists manualy but it didn't help.
Hashview master Version: 0.7.1
Hashview-agent Verson: latest commit
OS: Ubuntu 16.04.3 LTS

This may not be the right place for this, but I was able to get the Hashview-agent to run on Windows with surprisingly little effort.

Here are the directions I put together:

Install Intel CL Drivers:
https://software.intel.com/en-us/articles/opencl-drivers#latest_CPU_runtime

Install AMD Catalyst Drivers:
http://support.amd.com/en-us/kb-articles/Pages/latest-catalyst-windows-beta.aspx

Install HashCat:
https://hashcat.net/hashcat/
#Note: I installed it to d:\opt\hashcat

Test Hashcat:
hashcat64.exe -m 1000 -b

Install Git:
#Note this is for two reasons, one to pull the agent, but more importantly it comes with mingw64
#Use Option 3, Git and optional Unix tools from the windows command prompt

Download Hash-view Agent:
git clone https://github.com/hashview/hashview-agent.git

Download and install Ruby:
https://dl.bintray.com/oneclick/rubyinstaller/rubyinstaller-2.2.2-x64.exe
#Note check the add ruby to the system path option

#Update the Certificate using this link - There is an issue with ruby and windows regarding SSL certificates, I had to manually update the cert to install gems
http://guides.rubygems.org/ssl-certificate-update/#manual-solution-to-ssl-issue

Install Bundler:
gem install bundler

#Change directory to hashview
bundle install
#Ignore the JSON error, or remove the JSON entry from the Gemfile since ruby has the JSON gem already

#Note: if git did not add its linux tools to the path, do so now
PATH=%path%;d:\opt\git\usr\bin\

Provision:
set RACK_ENV=production
rake provision_remote_agent

Edit the config file:
{
"master_ip": "10.1.1.1",
"port": "4567",
"uuid": "26f8f90f-0776-44e3-85f5-27b74fd890eb",
"hc_binary_path": "d:\opt\hashcat\hashcat64.exe",
"type": "slave"
}

Running:
set RACK_ENV=production
ruby agent.rb

I get this error the first time I run it, but it seems fine after that

D:/opt/Ruby22-x64/lib/ruby/2.2.0/json/common.rb:155:in `parse': 757: unexpected token at '"#<Sinatra::Response:0x007f36e4d62de8>"' (JSON::ParserError)
        from D:/opt/Ruby22-x64/lib/ruby/2.2.0/json/common.rb:155:in `parse'
        from D:/opt/hashview/background_worker.rb:327:in `<top (required)>'
        from agent.rb:17:in `require_relative'
        from agent.rb:17:in `<main>'
agent has 2 CPUs
agent has 1 GPUs
agent max cracking speed (single NTLM hash):
  2595.1 MH/s (50.91ms)
HEARTBEETING

I think I have figured out how to upload cracked hashes in near realtime instead of having to wait until a job ends. Take a look at commit: 1a59f48 which I think is included with my pull request (I still dont have the hang of github). In the main loop I added logic to copy out the new lines that have been added to the cracked file into a new file in the tmp folder and then upload that.

Im not sure if there are any repercussions from this change, but so far in my tests it seems to be working well. Let me know what you think.

So this took me a bit to track down. Using the latest agent code I could no longer get the agent to work on windows. Everytime it would download a worldist it will error out saying the gz file is corrupt. I tracked it back to the way ruby handles on file transfers. On windows binary mode make a difference where on osx and linux it does not make a difference.

Here is the error you get:
gunzip: control\wordlists\password.gz: invalid compressed data--crc error
Calculating checksum
sha256sum: control/wordlists/password: No such file or directory

Here is the fix:
Line 331: File.open('control/tmp/' + filename + '.gz', 'w') {|f|
to
File.open('control/tmp/' + filename + '.gz', 'wb’) {|f|

I have tested this fix on both Linux and Windows and it downloads wordlists correctly.

My reference site:
https://www.rubytapas.com/2016/12/14/ruby-code-on-windows/