There is this to consider:
Advanced anti-virus programs like Kaspersky Internet Security etc. may throw out alarm if files are changed by another program (like the case of TDW Patch for sh5.exe). In most of these occurences the anti-virus will ask the user to allow or refute, but not all of them: some anti-virus will put the file in quarantine without asking user.
This means the player will try to install TWoS and wonder why the game doesn't start or why it starts and shows grafic errors etc. There is no executable anymore or the old NON-PATCHED one only, because anti-virus has taken it away or STOPPED the patch of TDW Patch. TDW Patch has therefore failed!
I highly advice to include in the TWoS installation instructions telling the player to DEACTIVATE / PAUSE PROTECTION temporarily the anti-virus during installation. I guess most ranting posts about grafic errors, no text in game, etc. are due because of this problem: sh5.exe has not been patched, but the player believes it because he has followed exactly the instructions..