I downloaded Propel Accelerator but it did not install  

When you clicked the Download Now button, you were prompted to open or save the file. If you saved the file, after the download completes, you need to locate the file propelsetup.exe and open it to begin the installation. If you cannot locate the file, download it again. Log into your account and select the link to download Propel Accelerator. 

I cannot open the Propel Accelerator file

If you get an Invalid win32 application error when you try to open the file, you need to delete the file and download it again. The file was not completely downloaded, which caused the file size to be smaller than the original source file.

If you see a box with a list of applications to open the file, it's possible that the file extension .exe was somehow lost from the Propel Accelerator installation file. You can easily check and add the .exe if needed. Right-click on the file and select rename to add the .exe file extension.

I do not see the small Propel Accelerator icon in the taskbar

First see if Propel Accelerator was successfully installed. Click Start, then Programs. Do you see Propel Accelerator? If you do not see Propel Accelerator in the menu, it is not installed. 

If you do see it, you may have some firewall software running that is prevents Propel Accelerator from loading until you register Propel Accelerator with the personal firewall software. Click Start, then Programs to see if you have personal firewall software installed on your system.

I do not see alternating arrows on the Propel Accelerator icon when I surf  

As part of the acceleration process, Propel Accelerator uses a proxy server on your computer. A proxy server is a local program that manages Web traffic to and from your browser. The proxy server is configured in your browser. If the proxy server is not configured correctly in the browser, you may not be able to browse. See the steps that follow to check the configuration.

Internet Explorer

  1. Click the small blue propeller icon and select Options. Choose the Advanced tab. Write down the port number. Click Cancel.
  2. From Internet Explorer select Tools -> Internet Options. Then choose the Connections tab and select the connection you are using. Click Settings.
  3. Select the "Use a proxy server for this connection" check box if it is not already selected. Then select the Advanced tab.
  4. Make sure that the proxy address for the HTTP port address is set to "localhost" (no quotes) and the port is set to the port number found in step one. Click OK. Now test to see if Propel Accelerator is working.
  5. You can verify that Propel Accelerator is working when:
  6. The Propel Accelerator icon (blue propeller icon near the system clock) shows moving arrows when you browse the Internet.


  1. Click the small blue propeller icon in the taskbar and select Options. Then choose the Advanced tab. Write down the port number. Click Cancel.
  2. Click the Netscape Edit menu and select Preferences.
  3. Double-click the Advanced category.
  4. Click Proxies.
  5. Click View [Netscape 4.7 only]
  6. Select "Manual proxy configuration" if it is not already selected.
  7. Click in the HTTP Proxy area and enter the word "localhost" without quotes.
  8. Click in the HTTP Port area and enter the Propel Accelerator port number (by default, the port number is 8080, but you should verify the number as described previously).
  9. Click OK. Try accessing your favorite Web sites; your Internet experience should be accelerated.

Propel Accelerator was working, and then the icon disappeared or stopped accelerating.

This problem may be due to a couple of factors: 

  • You may have personal firewall software installed that is preventing Propel Accelerator from launching or providing acceleration. 
  • ZoneAlarm can cause partial or incomplete page loads. This issue has been fixed by Zone Labs. If you are using ZoneAlarm, please upgrade to ZoneAlarm Pro version 4.5.xxx.xxx or later.
  • Norton Internet Security 2004 will shut down the port associated with Propel Accelerator. Configure Norton Internet Security 2004 to not monitor port 8080. 
  • If you have Microsoft XP with multiple user accounts

Why am I seeing degraded graphics after installing Propel Accelerator?

Propel accelerates the downloading of Web page images by first pre-compressing the graphics they contain. This is just one of many techniques that Propel Accelerator uses to improve Web page load time. By default graphic images are delivered to your Web page in slightly compressed form that balances speed of delivery with graphics quality.