Why is "flashplayerplugin" appearing in my command line output?

After opening the cmd.exe as usual, I suddenly see a weird thing: every output of any command that I enter that is related to my dev environment (ruby, git) in the cmd window is prefixed with the text: flashplayerplugin.

Interestingly, regular windows commands such as ver, dir work normally.

I uninstalled any flash plugins I had and restarted Windows, I also ran CCleaner cleaning any garbage I had and fixing registry entries. Didn't help.

See screenshot here:

Any idea what's going on and how to fix it?

My setup: Windows 7 on laptop.
My dev environment: RailsInstaller (Ruby 1.93, Rails 3.2), Git 1.7, RubyMine

Solution 1:

After burning almost a day on this I eventually found a solution:

Using PowerGrep (grep for Windows) I found that I had 2 installations of Flash plugin player: 32 bit version (which I of course removed), and 64 bit version, of which I had no idea. Uninstalling the 64bit version and restarting the system fixed the issue.

Solution 2:

The problem for me was a registry key added by AirFoil. Following the solution here worked: https://stackoverflow.com/questions/15467295/java-sdk-manager-crashes-with-flashplayerplugin-in-the-input

Solution 3:

I hate to leave this dead end for anyone else who comes to this question, but Mike Marsian's solution didn't work for me and I wound up using a System Restore to get me back to yesterday morning (and for once System Restore worked). I think my problem might have been that Chrome has its own copy of Flash. I actually discovered the problem wasn't unique to me via a conversation on Twitter with SourceTree if that provides any leads for people.

For anyone who winds up here, there's a similar Stack Overflow thread.