The Oracle Guest Additions and Extension Packs are Oracle only. And are copyright so we cannot touch them. We do not get the source code for them - we do build a "Guest Addition" for openSUSE Linux guests with permission from Oracle to do so. You need to go to the VirtualBox forum and fill out a problem report for Windows 7 guest and 7.0.4. If you run 15.3 or 15.4 you could try the Oracle VirtualBox 7.0.4 for 15.3 - it works for both and it is how I compare our 7.0.4 build to Oracles - there are slight differences that have to be done to make it build in Open Build System. Most are to allow the compiler options to build and not error out due to openSUSE security requirements that Oracle does not code for yet. There are still a lot of minor problems reported to Oracle on VirtualBox 7.0.4, I suspect that 7.0.6 release is not far behind. The day we got 7.0.2 to build in OBS, 7.0.4 came out.