[Setup]: MinVersion

Format:

major.minor

Default value:

5.0
Description:

This directive lets you specify a minimum version of Windows that your software runs on. Build numbers and/or service pack levels may be included.

If the user's system does not meet the minimum version requirement, Setup will give an error message and exit.

For compatibility with previous versions of Inno Setup, separate Windows 95/98/Me and Windows NT version numbers may be specified, separated by a comma. Example: MinVersion=0,5.0. The Windows 95/98/Me version number (the first number) must be 0, however, as Inno Setup no longer supports Windows 95/98/Me.