error in BSP

Hi experts,

i am trying to learn BSP.

i have created a simple BSP application.

when i execute my BSP application is giving error in the internet explporer like this

SAP Web Application Server Help

500 Internal Server Error

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Internal Server Error(9)

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Error: 9

Version: 6020

Component: HTTP_PLG

Module: htst_plg.c

Line: 2917

Server: ADIRA_D11_01

Detail: Error in HTTP Request

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can anybody give me some suggestions to resolve this please?

regards,

bharat..