Error Showing at the time of Installing new License in the Trial Version

Hi,

At the time of Installation I have given my system id: ABP. when I am trying to install the license and it shows the message below:

This is system "ABP", but there is a license key for system "NSP" in the license key file.

So I have change the license txt file and make SAPSYSTEM=NSP to SAPSYSTEM=ABP

then it shows the message below:

rc of SsfLibVerify: 5 = SSF_API_SIGNER_ERRORS = there are signer errors.

uResult = 27 = SSF_API_SIGNER_NOT_OK/SSF_API_RECIPIENT_NOT_OK = Signature not valid / operation not okay for recipient.

Can anybody give me any solution?

Thanks in advance.