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License Install Failed For License Type: 1 Result Code: 0xc03f6601 May 2026

The "license install failed for license type: 1 result code: 0xc03f6601" error is a common issue encountered when attempting to install a license on a Windows operating system. This error typically occurs when the system fails to activate or install a license due to various reasons.

9 Comments

  1. The EOSMSG is great, totally free ; )

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  2. Doesn’t work. I try to download and all I get as an RAR file. I have no idea what to do with and rar file

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    1. A RAR file is like a ZIP file, so it is a compressed archive. You can use a 30 day trial of WinRAR (www.rarlabs.com) to unpack this file.

      Reply
  3. This program does not work. It says my camera had 18281 shutter actuation’s on it. This is not possibable. So I took a few shots and tried it again and nothing changed. it still said 18281.

    Reply
    1. What body did you try it on? Chances are, none of the tools will be able to the shuttercount, as they all use the same way of obraining it. Or it may be a bug…

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  4. thank you very much Erik, very usefull and it works perfectly with several camera’s 40d, 50d,7d

    Groeten Tom

    Reply
  5. It is actually a nice and useful piece of information. I am satisfied that you
    just shared this useful info with us. Please stay us informed like this.
    Thanks for sharing.

    Reply

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license install failed for license type: 1 result code: 0xc03f6601