Wednesday, April 23, 2014

Error: Unable to install an application because an application with the same identity is already installed

Refer to this post, if you have problem installing the application

According to this link, the workaround is to clear the ClickOnce cache of application manifests before reinstalling. To clear the ClickOnce cache,

1. Open command prompt by inputting cmd in Run from Start menu.
2. Switch to the path which mage.exe is in. In my side, the path is C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin. Input "cd C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin".
3. Now input Mage.exe -cc. It will appears a notice: Application cache cleared

Monday, October 21, 2013

Encrypt Sync 4 Cloud




Download Location
If you use cloud storage for sharing or backup, it is utmost important that the files there are encrypted and only allow those you wish to share can open them. So far, I have not seen any tool that can do what I wanted, and therefore decided to write this application. Well, this changed from 15 Jan 2014, when I found out about that PKWARE "Viivo" is capable of doing similar feature, the link is However do take note that, my application does not incorporate proprietary encryption which Viivo does, my application make use of OpenPGP algorithm. So pick your choice!

To protect your files from unwanted access, I have created a software that works with GnuPG (open PGP tool) to securely encrypt your files and store them into the folder that will be synced to the cloud or folder in your backup drive

If you are not familiar with GnuPG, no worries, just install the GnuPG. Use password instead of PGP key to perform the encryption.

Enjoy your life!

System Requirements
Version History
  • 1.07
    • (2014 Apr 20)
    • Fixed a bug where after a PGP encrypted file is uploaded to the destination folder, it will be removed. Now the PGP encrypted file will be decrypted successfully to the source folder
  • 1.06
    • (2014 Apr 16)
    • Revamped GUI
    • Added feature "2 way sync (with exception)" - Sync new files, but only delete files in the cloud, does not delete source data files
  • 1.05
    • (2013 Nov 8)
    • Fixed a bug where "yes" to creating new folder does not work
    • Fixed a bug where renaming a file in the data folder will cause the program to crash
  • 1.04
    • (2013 Nov 5)
    • Fixed a bug where the output of the encrypted file is not using the Key ID
    • Fixed a bug where folder is not found, and there is no option to cancel the creation of the folder (in Folder Pair Configuration)
  • 1.03
    • (2013 Nov 4)
    • Finalize software
    • Optimized code
  • 1.02
    • (2013 Nov 3)
    • Multi-threaded added, increased performance!
    • Change how error code is being displayed
    • Optimized code
  • 1.01
    • (2013 Nov 2)
    • Using registry to store values rather than XML file so that re-installation of software will not render the settings useless
    • If cloud folder does not exist, it will prompt
  • 1.00
    • (2013 Oct 30)
    • Minimize to System Tray
    • Officially label as version 1.0, with full installer shared in google drive
  • 0.08
    • (2013 Oct 30)
    • Fixed some bugs with the auto sync feature.
    • Stable version
  • 0.07
    • (2013 Oct 28)
    • Added auto sync feature (1 way) from Data Folder to Cloud Folder
    • Added monitoring option (to detect changes in file/folder )
    • Fixed a bug where password only encryption failed pre-check test
  • 0.06
    • (2013 Oct 24)
    • Fixed a bug where the folder pair is not updated when deleted from the list
  • 0.05
    • (2013 Oct 24)
    • Encryption status now available
    • Application status now available
    • Program name is updated when installed in the computer
  • 0.04
    • (2013 Oct 23)
    • Folder Management, supports multiple folder (one-way sync)
    • Silent encryption (no more pop-up)
    • GUI upgrade (added menu bar)
    • Added "Password Only" encryption , this is NOT the password to your PGP key
  • 0.03
    • (2013 Oct 22)
    • Process (MS-DOS) now hidden during execution, pop-up to inform completion
  • 0.02
    • (2013 Oct 21)
    • Added XML to store settings
  • 0.01
    • (2013 Oct 21)
    • First release for everyone to try, sync and encrypt works
Installation Process
  • Install the pre-requisite software for this tool to work (in System Requirement)
  • Download this program
  • Unzip the contents to a folder (if necessary)
  • Run "setup.exe", it will execute some requirement checks (this is Microsoft tool)
  • The application will appear on your desktop
  • (optional) Execute Kleopatra and create your openPGP key
  • (optional) Ensure the key is set to "trusted", if not GnuPG will complain
  • Create the unique encryption key using GPG4Win via Kleopatra
  • Create 2 folders (1 containing your work files, and the other is the sync folder, which normally is a dropbox or skydrive share folder)
  • Refer to the picture below



Known Limitations
  • Chinese character filename is not supported
  • Free for personal and commercial use
  • To the developers of GnuPG who made openPGP possible
  • You may drop me a comment
  • or email me, email address is found in the software "About Dialog"