Unzip a .zip Archive

Demonstrates how to open a .zip archive and unzip. The Unzip method extracts the files and directories from a .zip archive and recreates the directory tree rooted at the directory path passed to Unzip.

Download Chilkat 32-bit Zip ActiveX (.msi) (includes objects for .zip, .gz, .bz2, and .Z)

Download All 32-bit Chilkat ActiveX Components (.zip)

Download All 64-bit Chilkat ActiveX Components (.zip)

CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @zip int
    EXEC @hr = sp_OACreate 'Chilkat.Zip2', @zip OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int

    --  Any string unlocks the component for the 1st 30-days.
    EXEC sp_OAMethod @zip, 'UnlockComponent', @success OUT, 'Anything for 30-day trial'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT

        PRINT @sTmp0
        RETURN
      END

    EXEC sp_OAMethod @zip, 'OpenZip', @success OUT, 'my_files.zip'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT

        PRINT @sTmp0
        RETURN
      END

    DECLARE @unzipCount int

    --  Returns the number of files and directories unzipped.
    --  Unzips to /my_files, re-creating the directory tree
    --  from the .zip.
    EXEC sp_OAMethod @zip, 'Unzip', @unzipCount OUT, '/my_files'
    IF @unzipCount < 0
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT

        PRINT @sTmp0
      END
    ELSE
      BEGIN
        PRINT 'Success!'
      END
END
GO