The file extension .lis is associated with the VAX 32-bit architecture, which provides support to machine language instruction sets, including virtual addressing developed by DEC in the 1970s. The .lis file extension is generated by the VAX system as a program listing file, which contains program source codes with accompanying line numbers, including any syntax errors detected by the compiler. The file extension .lis is useful in debugging programs created under the VAX/VMS system, and is closely associated with the CHARON-VAX computer system.The VAX system, which generates the file extension .lis, uses numerous large addressing modes and complex operations, like insertion and deletion queues, including evaluation of polynomials. The VMS is a term usually associated with high-end operating systems implemented in computer servers running under the VAX family, similar to the Itanium processor released by Intel. This system caters to multi-processing and multi-user functionalities, based on a virtual memory operating system, which specializes in batch and transaction processing including time sharing of resources.This architectural design allows for a disaster tolerant system that uses clustering to make the system readily available and distributable on multiple physical systems. The .lis file extension is generated as a compiler listing file for programs running under this system architecture, and presents information regarding specific compilation tasks. As a debugging tool, the file extension .lis helps to determine errors encountered during the debugging process, with the diagnostic messages generated by the system contained in the file listing.Another application that creates the file extension .lis is the Structured Query Reporting (SQR) application, which is used in conjunction with SQL databases. The function of the .lis file extension in this context is to generate output files (Report Files), pertinent to database management operation. Since the file extension .lis is used with SQL, it is acceptable to embed SQL statements within an SQR application for the purpose of processing information and report generation.The SQR supported file extension .lis can execute on various operating system platforms and databases that recognize SQL statements, which is one of the reasons why it has become an integral part of database management tools preferred by majority of database vendors. The SQR application is accompanied by a printing function, which can be used with the generated .lis file extension, and has the feature of combining printing and read instructions. The printing feature can format page and data breaks, font colors and sizes, and implement graphs using various parameters to adjust appearance and contents that can be applied to the .lis file extension.http://www.softresint.com/