I can't create .7z archive with explorer.exe > right click > add to myfile.7z (win7x64)

[bigrck64]

Hello !

It seems I can't create some .7z file with right click menu in explorer.exe This problem is only occuring on Win7x64, it's working well on Win10x64

Problem confirmed with: 7z22.01-zstd-x64.exe 7z21.03-zstd-x64.exe 7z19.00-zstd-x64.exe

For information, there is no problem when using right click menu with "create myfile.zip", also, "add to archive..." is working correctly when choosing 7z in main window.

Here is a screenshot of the bug (it's telling "Invalid Parameter" when trying to use right click menu, then "add to myfile.7z")

[mcmilk]

It looks, that like an error message of Standard 7-Zip. My messages should be "7-Zip ZS" ... have you both installed ... and can you check the same things with only 7-zip ZS installed?

[bigrck64]

Hum, but I uninstalled both before testing this. Do you know registry key I should drop to be sure my install is cleaned ?

[mcmilk]

Not without looking into code... can not be done in Moment.

[Earendil-F1]

Cannot confirm for 22.01 v1.5.4 R4, also didn't encounter this issue with previous versions. Windows 7 SP1 x64, right click -> "7-Zip ZS" -> "Add to myfile.7z" works well. I've only 7-Zip ZS installed, no original 7-Zip along with it.

[bigrck64]

Okay, so I tried it on another Win7x64 installation, where I removed standard 7-zip and install instead 7z22.01-zstd-x64.exe without any problem about right-click in explorer.exe I'm closing this issue, sorry for the noise guys, it must be something else on my old win7 install

[bigrck64]

The solution to fix my Right-Click -> 7-Zip -> Add to .7z shortcut problem

• Remove all 7-Zip standard install
• Remove all 7-Zip-zstd install
• Open regedit, remove any keys / folder with "7z" or "7-Z"
• Restart win7x64
• Reinstall latest 7-Zip-zstd
• Associate all knowed extention to 7-Zip-zstd
• Uncheck 7z association
• Check 7z association

Fixed :)