[Platform/Operation system] Windows 98/NT/2000/XP, Ms-DOS, NC 5, .Net Framework 1/2, IIS 4/5/6, Web, Java, Symbian [Development] Web: PHP, ASP Classic(VBScript), JavaScript, HTML, CSS Windows: C, Basic, Visual Basic [Graphic] Photoshop 5/6/7/8/9, Xara3D 6/7 [Flash/Animation] SwishMax, SwishVideo, GIFAnimator, ImageReady 7/8/9 [Multimedia/Audio] Multimedia Builder, Cool Edit, HipHop [Database] MySQL, MsSQL, ADO, ADO .Net 1/2, Access 97/2000/2002 [Office 97/2000/2002] Word, Access, FrontPage, Excel [General/Other] Search engine optimization(SEO), bug/vulnerable fixing, copywriting, FTP softwares, administrator, web standards, web/Windows security, network+, Visual Studio 5/6, Visual Studio .Net 2005/2007, Macromedia softwares, Borland softwares, Windows internet browsers, DZSoft softwares, ...