Number of Connections

Portable Offline Browser can download from one to 500 files simultaneously, making downloading easier and faster. The most commonly used number of connections is between 10 and 20. Fewer connections may make the downloads slower, while more may make them unreliable because of a possible timeout. If you feel that your downloads are not reliable, but you don't want to decrease the number of connections, try increasing the Timeout value. You are free to change this setting at any time. If you increase the number of connections while downloading, the new channels will be added immediately. If you reduce the number of connections, the extra channels will not be removed at once, as Portable Offline Browser will wait until files downloading on the last connections finish before removing the channels. Warning: selecting more than 100 simultaneous connections may cause system instability, as Windows may have problems while handling that many opened TCP/IP sockets.

Number of retries

File downloads may fail for several reasons: server not found, connection was not established, file was not transmitted fully, timeout, etc. To recover from these failures, set the Number of retires setting in the Options | Internet | Connections panel to tell Portable Offline Browser how many times to attempt to re-establish a connection. If the number of retries is not set, Portable Offline Browser will retry indefinitely until it succeeds or is manually stopped.

Delay between downloads

To reduce the traffic created by Portable Offline Browser, you may increase the Delay between downloads setting. Once a file is loaded, Portable Offline Browser will wait the specified number of seconds before retrieving the next one. You can also use random delays to make Portable Offline Browser act as a human browsing. This may help to overcome anti-offline browsers protection on some Web sites. Simply use the following format: 2-10 The above will make Portable Offline Browser to choose a delay randomly in the range between 2 and 10 seconds before downloading each file.

You may specify non-integer delays, like 0.23 seconds. Or 2.5-5.7.

Timeout

This value could help fine-tune your downloads. If Portable Offline Browser is waiting for data from the Internet longer than the number of seconds specified in the Timeout setting, the connection will be broken. A high number of timeouts usually means that something is wrong with the path to the server. To remedy an extremely high number of timeouts, either decrease the Number of connections (number of downloading channels) or increase the timeout value.

Cookies support

Check this setting to use MS IE cookies while downloading Web sites. This is useful for loading some protected sites which store user information in cookie files. In this case, it is best to log on to the site using MS Internet Explorer and then load it with Portable Offline Browser. Some sites use temporary cookies, so it is better to use the Internal browser in Portable Offline Browser to log on to the site first. Portable Offline Browser will use both permanent and temporary cookies from Internal browser.

Internal HTTP server port

Portable Offline Browser includes an internal HTTP (Web) server to facilitate viewing and sharing downloaded pages. By default, the internal HTTP server uses port 800. You may change this setting if you wish. To access the server from the computer where Portable Offline Browser is running, you may type: http://127.0.0.1:800/ in your Web browser’s URL field. Users on other computers should know the IP address of the computer to access the downloaded pages.

Agent Identification

Sometimes it is necessary to change the way Portable Offline Browser represents itself to other Web servers. This is called "User Agent." By default it is MS Internet Explorer. Portable Offline Browser will try to identify MS IE version itself to use exactly the same representation. There are a few preset user agent values in the drop-down combo box. The actual representation is displayed in the Use this identification field. If you need to use something other than the preset values, choose Use this identification and type the desired user agent. The User Agent value doesn't affect most Web sites. However, you may experience problems downloading some protected Web sites, or HTML documents may be returned with incorrect encoding until the correct (in the Web site's opinion) User Agent is set.

Local access only

When this setting is checked, Portable Offline Browser will prevent other computers from accessing the Internal HTTP (Web) server. This could be used for security reasons.

Unchecking the setting allows you to share downloaded Web sites with other people.