checking registry availability and error message

rowland / fb

Firebird Extension Library for Ruby

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checking registry availability and error message #51

Closed omichkun closed 7 years ago

omichkun commented 7 years ago

Added checking availabiblity of Registry Key 'SOFTWARE\Firebird Project\Firebird Server\Instances' and print of error if no any Firebird instances found in system (in the ENV in registry or in ProgramFiles)