(SQL Server) Create a WinZip/7-Zip compatible AES Encrypted Zip

Creates a WinZip compatible AES-encrypted .zip archive

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @zip int
    -- Use "Chilkat_9_5_0.Zip" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Zip', @zip OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int
    EXEC sp_OAMethod @zip, 'NewZip', @success OUT, '/myZipDir/aes.zip'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @zip
        RETURN
      END

    -- Set properties to indicate that the Zip should be
    -- AES encrypted.

    -- A value of 4 indicates WinZip compatible AES encryption.
    EXEC sp_OASetProperty @zip, 'Encryption', 4

    -- Key length can be 128, 192, or 256 bits.
    EXEC sp_OASetProperty @zip, 'EncryptKeyLength', 128

    -- Set the password for AES encryption:
    EXEC sp_OASetProperty @zip, 'EncryptPassword', 'myPassword'

    -- Add a directory tree to be zipped.  (The files
    -- are not compressed at this point -- only references
    -- to the files and directories are added to the zip object.)
    DECLARE @recurse int
    SELECT @recurse = 1
    EXEC sp_OAMethod @zip, 'AppendFiles', @success OUT, 'c:/temp/a/*', @recurse
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @zip
        RETURN
      END

    -- Create the encrypted zip ("/myZipDir/aes.zip")
    -- The path of the zip is what was originally passed
    -- to the NewZip method (above).  
    DECLARE @success int
    EXEC sp_OAMethod @zip, 'WriteZipAndClose', @success OUT
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @zip
        RETURN
      END


    PRINT 'Created AES Encrypted Zip.'

    EXEC @hr = sp_OADestroy @zip


END
GO