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1 daniel-mar 1
VIATHINKSOFT AUTOSFX
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====================
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Benefits
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--------
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* Compatible with WinRAR and other software (Stub is small enough)
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* Compatible with Linux' UnZip (No Warnings!)
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* Compatible with AuthentiCode
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* Compatible with Windows 7
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* Compatible with Windows 95
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* Accepts encrypted files (currently only ZIP 2.0 Standard)
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Currently not supported
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-----------------------
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* AES-Encryption (128, 256 Bit)
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Current overhead
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----------------
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458 KB (Delphi 2006)
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Cancel
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------
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Press ESC to cancel.
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The program waits 1 second before starting extraction (Prevention of malicious
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AutoRun's, which call the creator SFX in an infinite loop)
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Structure of a ViaThinkSoft AutoSFX Archive
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-------------------------------------------
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1. Extractor [UPX'ed]
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   includes DelZip190.dll (B4) as Resource
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2. ZIP (Offset adjusted)
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   File comment includes "ViaThinkSoft AutoSFX Archive"
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3. Optional: Authenticode Certificate
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Process
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-------
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1. Extract DelZip DLL into TempDir
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2. Extract contents directly
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3. Open the extracted data and/or execute special AutoRun.inf (see below)
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4. Delete the DLL from TempDir
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Behavior
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--------
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ZIP has 1 file
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	=> Extract DIRECTLY in the specified directory
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	Is it a directory?
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		=> Open the new directory in Windows Explorer
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	is it a file?
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		=> Open Windows Explorer and select the new file.
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ZIP has 2+ files
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	=> Create a directory with the name of the SFX and extract into it
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	=> Open the new created directory in Windows Explorer
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Semantic archive comment
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------------------------
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The extractor looks into the file comment to determinate the behavior
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while unzipping. YOU can influence the behavior when creating your
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ZIP files.
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Following switches are possible:
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  C_ASFX_CB_OVR = 'AutoSFX Conflict Behavior: Overwrite all';
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  C_ASFX_CB_NEW = 'AutoSFX Conflict Behavior: Overwrite older';
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  C_ASFX_CB_ASK = 'AutoSFX Conflict Behavior: Ask';
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  C_ASFX_CB_AVO = 'AutoSFX Conflict Behavior: Avoid'; (default)
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  C_ASFX_CP_BEF = 'AutoSFX Comment Presentation: Before extracting';
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  C_ASFX_CP_AFT = 'AutoSFX Comment Presentation: After extracting';
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  C_ASFX_CP_NON = 'AutoSFX Comment Presentation: None'; (default)
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  C_ASFX_FC_THS = 'AutoSFX Extraction Target: Extract here'; (default)
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  C_ASFX_FC_DSK = 'AutoSFX Extraction Target: Extract to Desktop';
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  C_ASFX_FC_ASK = 'AutoSFX Extraction Target: Choose directory';
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Note: If you are running the SFX from a CD-Rom, a write-protected
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directory or a flobby (doesn't matter if it is write-protected!),
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the extraction "Here" will be ignored and converted into "Desktop".
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Note: "Avoid" means that an alternative file/foldername will be
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determinated.
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Special AutoRun.inf
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-------------------
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[AutoSFX]
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Operation=open			; Part of ShellExecute. Usually 'open' or 'runass' (e.g. for admin privilegies)
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FileName=AutoRun.exe		; The filename to be executed
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Parameters=			; Optional parameters
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Directory=			; Optional Working directory
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ShowCmd=			; (See MSDN Reference) Usually WS_NORMAL or WS_HIDE
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OpenUnzippedContent=true	; After we have opened the application, should we still show the extracted data in Windows Explorer? (Default behavior if not AutoRun is set)
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More information about the first 5 values:
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http://msdn.microsoft.com/en-us/library/bb762153(VS.85).aspx
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(C) 2010 ViaThinkSoft