Formerly known as "Turbo Basic" from Borland, it still can be of interest to convert legacy code. Read article Extending Classic (6.0) Visual Basic.
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Pro Interface with other languages
Available calling conventions:
Standard native to Windows, C and Basic / Pascal.
Pro Native compiler
Designed as a Windows native code compiler from the beginning.
Con 32 bit only
Con Out of Date
The latest version, 10.03 was release in 2011.