[Front Runner]

Originally Posted by Javelin

Trying to install SH4 and Uboat missions on my new laptop. Entered the access code but keeps telling me its invalid Tried contacting UBsoft but with no results.. Any help would be appreciated

If you are attempting to install to Windows 10 latest update, then you probably have to treat your install .exe files with the Large Address Aware. I recently installed SH4 from my legacy DVD (key usually installed with SH4) and downloaded v1.4 (does not need key). U-Boat Missions needs the key that comes with the file. I purchased mine many years ago and still have the receipt and the key. Even so, after the v1.0 SH4 installation, she would not run until I treated the SH4.exe with LAA. Then, in order to get the SH4v1.4 update AND the U-Boat Missions.exe update to even RUN, I had to treat them both to LAA. After executing the U-Boat Missions.exe update, make sure you have the U-Boat Missions key and not the key that came with your original DVD.

Are you installing from DVD and downloaded v1.4 and v1.5 updates?
Are you installing from an online purchase download, if so, which version(s)?
Are you installing from STEAM? ($9.99 for SH3, SH4, SH4-UBoatMisiions and SH5 until Jan 5 2021)

It helps us to know what format you're installing from and what version of Windows you are using.