LASSymbols.DLL Failed to register

Problem:

While installing LP360 user encounters the error, "Module C:\Program Files\Common Files\LP360\LASSymbols.dll failed to register." (v2018.1 and later). Multiple errors of a similar nature for other DLLs also occur if one continues with the installation.

Probable Resolution #1:

1. Download and install the latest version VC++ redistributable
   1. x64 for LP360
   2. x86 used by some utilities
2. Reboot the machine.
3. Try installing LP360 again.

Probable Resolution #2:

If on a Windows 7 or Server 2008 R2 operating system with Windows Update KB4041686 or similar installed:

1. Continue through the errors to complete the installation.
2. Open an elevated command prompt by right-clicking on Command Prompt and selecting "Run as Administrator"
3. Change directory using "cd "c:\Program Files\Common Files\LP360"" (v2018.1 and later) or "cd "c:\Program Files\Common Files\QCoherent"" (version prior to v2018.1).
4. Execute regall.bat to register the DLLs that erred when using the MSI by typing "regall" at the command prompt.

Probable Resolution #3:

Roll back the Windows updates. Install LP360. Then install the Windows updates.

Probable Resolution #4:

There may be something else going on with your machine configuration that is interfering with the proper installation of LP360. From an elevated Command Prompt (right-click on Command Prompt and select "Run as Administrator"), please run the following command using the full path to where you have the MSI and writing the log file to a directory that you can access.

msiexec /i "LP360_v2025.2.246.0.msi" /L*v "log64.txt"

Contact Support to send the log file that gets generated.