I know what I want; a web development tool (My choose for desktop would be .net after VFP) for selling my own applications, I'm working for a firm in same time and learning X++, X++ is a good choice for find a job.

Of course all of us about business applications... :)

I just know Windows. I can't care another OS after 40... :)

But still I cannot find the answer. Because I don't know so much about web development, actually nothing...

>What language to use is very difficult decision but I think you can start working towards an answer by asking a series of high level / broad stroke questions. For example (but not a complete list);
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>1) Do you want to become more employable or are you self employed and selling your own applications?
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>2) If you want to find work, then where? In larger or smaller companies?
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>3) If you sell your own applications then what is the target market for them? Corporate clients, small clients, individuals?
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>4) Do you want to focus on desktop, mobile or website type development?
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>5) Do you want to be on Windows, Linux, Apple or any/all?
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>6) Do you want to be open-source or closed or either?
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>7) What type of programming interests you? Gaming, business, data, security, mathematical, social media, etc.?
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>Just some ideas to start narrowing the choices a bit since not all tools are suitable for all answers.