I was recently introduced to PuttyCM and am hooked to it till now.

Just a while ago while I was making some changes to the config and all of a sudden I could not access the software. Unexpected Error “object reference not set to an instance of an object” shows up and I can’t seem to access the software anymore.

PuttyCM Error

Then I remembered the last I changed was the “Show Tray icon” option to disabled.

I re-enabled the option and…

Bingo.. I can access the program again.

Hope this will help you too. 🙂

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15 Responses to PuttyCM – Object reference not set to an instance of an object error

  1. guest says:

    THX 2 helpful

  2. Volker says:

    Thanks for that hint! .-)

  3. Biff says:

    Big “Thank you”

  4. timwii says:

    thanks a ton…it worked too

  5. Ferraz says:

    Thanks a lot! It worked

  6. John Doe says:

    Thanks a ton. This helped me.

  7. willeke666 says:

    What a stupid checkbox, as the error message says:
    Unable to find PuTTY sessions (registry key ‘HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\Sessions’ does not exist)

    Thanx man you really saved me !

  8. Was indeed very helpful!

  9. tejmail says:

    thank you it worked – Thank you for sharing your experience

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