Global Password

If you wish to restrict the access to your publication, you can password protect it: end users will be prompted for the password before the ebook starts. If the password entered is incorrect, then an error message is displayed (given by SInvalidPassword resource string) and the ebook closes immediately.

You can also customize the behavior of the publication when the password is incorrect thanks to the HEScript UserMain.OnInvalidPasswordAtStartup Boolean event. The runtime module invokes this event if the password provided by the user is incorrect. If you set the result of this event to True, the publication does not exit.

function OnInvalidPasswordAtStartup: Boolean;
begin
Result := True;
end;

In order to create a set of acceptable passwords that can be unique, when distributing to a set of customers, wild card characters are accepted. Thus, you can set up the following global password: 123-4**-A** (and so any character can be input for the wildcard place holder).

 Allowed wild card characters:

• # digit (0..9)
• _ single character (a..z) and (A..Z)
• * any character.

HTML Executable comes with a password generator that lets you create lists of random passwords based on the provided mask.

Choose the number of passwords to create and click Generate.

Ask for the password only once and store it

Once you have set up a global password, your end users will be asked for it each time they start your ebook. If you wish to avoid that, enable this option. Once the password was validated, it will be stored and your users can access your ebook without being prompted for the password each time.

Set a global expiration date

If you would like your publication to expire after a specific date (it does not run anymore), then just select the expiration date you want. After that date, an error message is fired (given by SPublicationExpired resource string) and the publication closes immediately. Changing the system clock will not modify the expiration state.

When testing your publication on your own computer, you can remove the expiration state by clicking "Clear expiration info". This function will only work if the publication has expired. It is possible to remove the expiration state on other computers using the Cleanup utility.

By associating the expiration date to a version number, you have a way to reset the global expiration once you release a new version of your ebook. For instance, you have a global rule to expire the software on 5/1/2012, and once it's expired, you will be releasing a new version requiring everyone to upgrade.

Finally, you can also customize the behavior of the publication when the expiration date is reached thanks to the HEScript UserMain.OnExpiredPublication Boolean event. The runtime module invokes this event and if you set its result to True, the publication does not exit.

function OnExpiredPublication: Boolean;
begin
Result := True;
end;

Check publication size at startup

When a publication is downloaded from the Internet, if the download was not successful, this may result in a truncated file. In this case, running non-complete publications may not be safe. To prevent truncated downloads or size-modified publication files, you may enable this option. When turned on, it forces the publication to check its size. If the size is not the same as it was when the publication was built, an error message is fired.

Disable PRINT SCREEN

The PRINT SCREEN key allows Windows users to capture the whole screen to a bitmap, called a screenshot. This screenshot is then saved to the Clipboard and users can paste the result in any word processing tool or image editor. If you would like to disable this function, just turn on "Disable Print Screen": pressing the key won't take screenshots anymore when the publication is running.

Notes:

• This function, however, does NOT stop screen capture tools.

• Some programs (such as these capture tools) may also try to override the Print Screen hotkey. In this case, there may be conflicts.

• Self-Extracting publications are not able to disable all Print Screen keystroke combinations contrary to other publication types.

Only one instance of the publication can be run at a time

Enable this option to make sure that only one instance of your publication executes. If the user tries to run a second instance, it immediately exits and the previous instance gets enabled and visible.

Moreover, command-line arguments are directly passed to the running instance: this feature is useful for help files as it lets you change the current topic for instance without having to close and start another instance of the publication.

Do not run if a debugger is detected

This option checks for known debuggers and file/registry monitoring software programs (such as OllyDbg, SoftIce, WinDBG, RegMon, FileMon...) and will refuse to run the ebook if one is running. An error message is fired, or advanced user may also customize the behavior of the publication thanks to the HEScript UserMain.OnDebuggerDetected Boolean event. The runtime module invokes this event and if you set its result to True, the publication does not exit.

function OnDebuggerDetected: Boolean;
begin
Result := True;
end;