Here's the full text of license.txt:
We welcome people modifying, extending and making projects for SolidCoin. We realize people don't want to have to get permission to use, or have to release source code to their projects if they don't won't to.
HOWEVER.
The SolidCoin source cannot be used in projects which are not in close relation to SolidCoin or do not work with the project (currently defined by the project hosted at
http://solidcoin.info). We reserve the right to cancel this open source license to any project which has a negative impact on the SolidCoin network or SolidCoin users.
Your projects source code doesn't need to be released if you use the source or derive from it. A credit or note about using the source code would be welcome however. Businesses and companies are also free to use the source provided all other conditions are met.
The SolidCoin name is trademarked by RealSolid. All source applicable is also copyrighted by RealSolid. The copyrights and trademarks will be handed over to the SolidCoin NPO which will be created at some point in the future.
*NOTE*
Some parts of SolidCoin are still based on the MIT licensed source code by Bitcoin, as such to check the differences in code please consult the Bitcoin code base to determine what is MIT and what isn't. This copyright applies to particular Bitcoin fragments of code within SolidCoin.
Copyright (c) 2009-2010 Satoshi Nakamoto
Copyright (c) 2011 The Bitcoin developers
Distributed under the MIT/X11 software license
For all original work in SolidCoin the following copyright applies
Copyright (C) 2011-2012 RealSolid
Copyright (C) 2011-2012 SolidCoin Developers (mtrlt, ahimoth, karmoan)
Disclaimer of warranty
Covered code is provided under this license on an "as is" basis, without warranty of any kind, either expressed or implied, including, without limitation, warranties that the covered code is free of defects, merchantable, fit for a particular purpose or non-infringing. The entire risk as to the quality and performance of the covered code is with you. Should any covered code prove defective in any respect, you (not the initial developer or any other contributor) assume the cost of any necessary servicing, repair or correction. This disclaimer of warranty constitutes an essential part of this license. No use of any covered code is authorized hereunder except under this disclaimer.
As I posted previously, there is a very clear "The above copyright notice and this permission notice..." term in the original license. You can use your file editor's search function to see that the required notice is not in license.txt.