Error code 99 with Secure(Real) Login Id And Transaction Key

[Atif]

Am Downloaded SIM Method Code from this link ---->"http://developer.authorize.net/downloads/samplecode/".....

And am applied my Real(Secure) Transaction Login Id and API key.....

But am getting This error(Error Code-->99) when am clickked on Clik here for secure payment...

please help me soon

Thanq 

[RaynorC1emen7]

https://developer.authorize.net/tools/responsecode99/