WAMs are shipped with a set of standard weblets for each Technology Service. A weblet is a repository object that contains one or more weblet templates. A weblet template is a reusable component that wraps some common functionality and can be dragged and dropped onto your WebRoutine designs.
Although a weblet may contain many weblet templates, it is normal practice for each weblet to contain only one template so the term "weblet" is often used to refer to a weblet template. A weblet may exist in one or more of the Technology Services.
You should never modify the shipped weblets directly. Every time a Partition Initialization with the Enable for the Web is executed, the shipped weblets are re-imported and the weblets in the repository are overwritten. If you wish to customize a weblet, make a copy of the shipped weblet then modify the copy (including JavaScript functions that the weblet uses as they might be changed in future versions). The shipped weblets use a standard naming convention where the weblet name is prefixed with 'std_'. You should not use this prefix for any custom weblets you create.
Also, see