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Error: The specified directory for the INSTALLSHAREDDIR parameter is not valid

During the installation of Diamonds/ PowerConnect (version 2017 until 2019r02), you get the error:

The specified directory, “C:\Program Files\Microsoft SQL Server\”, for the INSTALLSHAREDDIR parameter is not valid because this directory is compressed or is in a compressed directory. Specify a directory that is not compressed.

This error is related to the database system (= SQL instance) used by these versions.

Solution 1

  • Install Diamonds/PowerConnect/BIM Expert 2020 or more recent. These versions so a different type of database, which no longer requires the installation of an SQL instance.

Solution 2

  1. On the desired folder (in this case “C:\Program Files”) right click and go to Properties.
  2. Click on Advanced button.
  3. Uncheck the box Compress the drive to save space
  4. Click Apply and then Ok.
  5. Let the process finish.

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