Avoiding QVSRemote and using open/post/send solved it. There was an example in C:\Program Files\QlikView\QlikView SDK\samples\Authentication\DMS_Http that was quite different from the server manual that worked after some tweaking of the IIS permissions and app pools as stated in the thread Daniel mentioned.
The qvsremote dll file is a file through which we can run our dll applications. This is use for remotely access to reduce the time and make your work easy. If qvsremote dll file is not installed in your system then you may take more time to do your work. you can download isdone.dll and install it easily and save your time.