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What is the .SLL File Extension?

.SLL File Extension Description:

The library module of the reflective and object-oriented programming language known as Smalltalk uses the SLL file extension format. Smalltalk influences computer programming in four key areas. It serves as the basis for the semantics and syntax of other programming languages, and as a trial product for message passing technology. Its WIMP Graphical User Interface motivates the Windows environment, and its Integrated Development Environment (IDE) acted as the forerunner of a generation of visual programming software functioning like Smalltalk's debuggers and code viewers.

An object in Smalltalk, employing the SLL file extension format, contains a state, accepts a message from another object or from itself, and transmits messages to various objects, including from it. Smalltalk is different from C++ and Java in that there is no distinction between values that are primitive and values that are objects. Primitive values including Booleans, integers, and characters are also considered as objects in Smalltalk because they are examples of corresponding classes, and operations on these values are called upon by transmitting messages.

Smalltalk and the SLL file extension format afford a very reflective system by offering both computational and structural reflection. Computational reflection is the capability to determine a system's computational condition. Structural reflection means that the methods and objects that classify the system are themselves completely part of the system and are considered as objects.

The Spreadsheet Load Library of the Web components of Microsoft Office, particularly Microsoft Excel, utilizes the SLL file extension. The Static Link Libraries, which were sometimes employed for the DOS and Windows 3.x operating systems, also utilized the SLL format. Contemporary programs, such as Visual C++, which makes use of a Static Link Library when it is compiling a number of functions, still use them.

Author: Xerox PARC
Author URL:
Related Applications: Smalltalk, Microsoft Excel, Microsoft Office
Common Path: N/A


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What Causes .SLL files Errors to Occur?

.SLL files errors are potential severe Windows file system errors and can be caused by a faulty registry that should be repaired at once to protect against further corruption in other applications and/or devices. Risks include system device damage, blue screen errors and fatal crashes.

.SLL files Errors - Common Symptoms:

.SLL files error symptoms include program freezes, start up or shut down problems, jerky pc operation, sluggish behaviour, input freeze, internal speaker beeps, trouble opening application files as well as errors during software installation.

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