SETVER (DOS command)

SETVER was an MS/DOS command that enabled users to have the system self-identify as having a version ID other than the one currently running, when running specified programs.
Overview
Certain programs had reasons for disallowing themselves to run on older or newer versions of MS/DOS. In some cases, the reason appeared to be forcing the purchaser of the base product to pay more, often when it previously was an included component. The most reasonable cause was when the mismatched version was known to cause a failure.
A version table was specified at startup; versions could be specified as far back as 2.11.
History
Version 5 of MS/DOS introduced the SERVER command. Formal documetation described it as "Purpose: Makes Version 5 of DOS appear to be an earlier version when an
application requires it." An entry in config.sys loaded the program.
Workalikes
It is included in the PTS/DOS command set. FreeDOS dropped it by 2014 as being "a legacy migration thing .. not really needed."
 
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