STP Viewer Silent Install (How-To Guide)

STP Viewer is a software tool for viewing international STEP standard files. STEP files (.stp) for 3D and assembly are often used by all major mechanical CAD systems. With STP Viewer you can easily open 3D files (.stp), rotate them and perform some basic actions like zoom, rotate, move or change skin. This article will serve as an informative guide and give you a clear understanding of how to perform a silent installation of STP Viewer from the command line using the EXE installer.

How to Install STP Viewer Silently

STP Viewer Silent Install (EXE)

  1. Download the STP Viewer Installer
  2. Download the Inno Setup Unpacker
  3. Place both files in a folder created at (C:\Downloads)
  4. Extract the contents of the Inno Setup Unpacker (.rar file) with 7-Zip to C:\Downloads\innounp.exe
  5. Open an Elevated Command Prompt by Right-Clicking on Command Prompt and select Run as Administrator
  6. Navigate to the C:\Downloads folder
  7. Enter the following command to unpack the STP Viewer Installer:
    • innounp.exe -x -m stviewersetup.exe
  8. Press Enter
  9. Navigate to the C:\Downloads\{app} folder
  10. Open the STPViewer.exe.config file with Notepad or your favorite text editor
  11. Change the “RePaintOnOpen” setting value from True to False:
   <setting name="RePaintOnOpen" serializeAs="String">
  • Save the updated STPViewer.exe.config file
  1. Download the Inno Setup Installer
  2. Open an Elevated Command Prompt by Right-Clicking on Command Prompt and select Run as Administrator
  3. Navigate to the C:\Downloads folder
  4. Enter the following command to install Inno Setup:
    • innosetup-6.x.x.exe /VERYSILENT /NORESTART /ALLUSERS
  5. Press Enter
  6. Open the install_script.iss file located at C:\Downloads with Inno Setup
  7. Select Build & Compile (This will recompile the STP Viewer installer)
  8. Navigate to C:\Downloads\Output
  9. Enter the following command to install the STP Viewer:
    • stviewersetup.exe /VERYSILENT /NORESTART
  10. Press Enter

After a few moments you should see the STP Viewer Desktop Shortcut appear. You will also find entries in the Start Menu, Installation Directory, and Programs and Features in the Control Panel.

Software Title:STP Viewer
Installer Type:EXE
Silent Install Switch:stviewersetup.exe /VERYSILENT /NORESTART
Silent Uninstall Switch (32-bit System)"%ProgramFiles%\STPViewer\unins000.exe" /VERYSILENT /NORESTART
Silent Uninstall Switch (64-bit System)"%ProgramFiles(x86)%\STPViewer\unins000.exe" /VERYSILENT /NORESTART
Download Link:

The information above provides a quick overview of the software title, vendor, silent install, and silent uninstall switches. The download link provided take you directly to the vendors website. Continue reading if you are interested in additional details and configurations.

Additional Configurations

Create an Installation Log File

The STP Viewer installer offers the option to generate a log file during installation to assist with troubleshooting should any problems arise. You can use the following commands to create a verbose log file with details about the installation.

STP Viewer Silent Install (EXE) with Logging

stviewersetup.exe /VERYSILENT /NORESTART /LOG="%WINDIR%\Temp\STPViewer-Install.log"

Change Default Installation Directory

You can also change the default installation directory by using the following command line parameters. In this example, I’m installing STP Viewer to “C:\STPViewer”

stviewersetup.exe /DIR="C:\STPViewer" /VERYSILENT /NORESTART

Exclude Desktop Shortcut During Install

The STP Viewer installer creates a desktop shortcut by default. If you do not want the desktop shortcut, then you can run the following command line switches to exclude it.

STP Viewer Silent Install with No Desktop Shortcut

stviewersetup.exe /VERYSILENT /NORESTART /MERGETASKS=!desktopicon

How to Uninstall STP Viewer Silently

  1. Open an Elevated Command Prompt by Right-Clicking on Command Prompt and select Run as Administrator
  2. Enter one of the following commands:

STP Viewer Silent Uninstall (EXE) on 32-bit System

"%ProgramFiles%\STPViewer\unins000.exe" /VERYSILENT /NORESTART

STP Viewer Silent Uninstall (EXE) on 64-bit System

"%ProgramFiles(x86)%\STPViewer\unins000.exe" /VERYSILENT /NORESTART

Always make sure to test everything in a development environment prior to implementing anything into production. The information in this article is provided “As Is” without warranty of any kind.

Jason Bergner

I am an accomplished Software Engineer at Patch My PC, leveraging more than 18 years of hands-on experience in Configuration Manager administration and application packaging. I am driven by a genuine passion for solving complex problems and consistently strive to discover innovative and effective solutions. Sharing my extensive knowledge of application deployments is a true joy for me, and I am honored to contribute to the community here at Silent Install HQ.

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