• Is GAUSS installed to the default location of c:\gauss12 (Windows) or
  /home/user/gauss12 (Linux/Mac)? If it is not, the folder may not have
  full read/write privileges which are necessary for proper operation of
  GAUSS.
• Did you install GAUSS as an administrator? If not, you may be able to
  go to the GAUSS 12 folder and right mouse click on the file
  winpostinstall.exe, then select “Run as administrator” to remake the
  myhostid.txt file and obtain the hostid information.
• You may also be able to display the hostid information by running
  rlmhostid.exe (Windows) or rlmhostid (Linux/Mac) in the lm folder under
  GAUSS. Open a command prompt or terminal window and change directories
  to the folder where you have GAUSS installed. Enter the following at the
  prompt:

      lm\rlmhostid.exe (Windows)

  or

      lm/./rlmhostid (Linux/Mac)

This should display the hostid information on the screen; copy and paste
this information into an email and send it along with your GAUSS serial
number to license@aptech.com.