edit the source code of softhether VPN client and compile -- 2

softether VPN client is an open source and free. My Requirements: first: the application must ask for login details "user name and password", the app check a WP database if they are valid. ( with API ) if yes, it download the client vpn files and save it in the local disc, so the user can use to connect to any VPN exist in the list. the application must download the VPN client files depend on package that the user is subscribed in, i have 3 packages , every one have specified vpn client files. if the user not exist or expired, ask for renew or register. NOTE : send the user-pass to API in POST or JSON format. with Basic Auth for security if ok, valid, not expired, receive full information with expire time. else receive error message in detail: invalid username or pass, expired.... server error... if could not receive anything also when valid, the API return link of config file or whole config text in message so dont need to download... then use this text, save to config file.. app client should have permission for overwritten old config file Second Req: check for update ( API ) that's it. How to build SoftEther VPN for Windows ====================================== Requirements ------------ You need to install the following software to build SoftEther VPN for Windows. - Microsoft Windows XP, Vista, 7, 8 or later. - Microsoft Visual Studio 2008 with the latest SP (SP1 9.0.30729.4462 QFE). Make sure that you installed the x64 compiler and build tools. * Note: Visual Studio 2008 SP1 is required to build SoftEther VPN on Windows. Please make sure that VS2008 'SP1' is installed. Visual Studio 2010, 2012 or 2013 is currently not supported. Visual Studio 2008 Express Edition is not supported. Standard Edition, Professional Edition, Team System or Team Suite is required. Full Build Instructions ----------------------- The following steps will build all SoftEther VPN program files, and also build the installer packages of SoftEther VPN. It is very easy. 1. Run the "[login to view URL]" batch file in the "src" directory. 2. Wait until the building process will complete. 3. The built files are stored on the "output" directory. Partly Build, Debug or Development Instructions on Visual Studio 2008 --------------------------------------------------------------------- If you are a programmer, you can open the SoftEther VPN solution file with Visual Studio 2008 to customize. Open "src\[login to view URL]" and enjoy it. ( the source code is located here: [login to view URL] ) thank you