Download ICQ New from the official website: https://icq-www.hb.bizmrg.com/deprecated-versions/win/xp/icqsetup.exe (XP version) and install it.
After the installation, it will fail to start with error that dbgeng.dll is missing. I tested it with 0.4.15-dev-424-g622f187.
As it appeared, we indeed currently lack this dll in ReactOS. But Wine already has it. So I improted it from there (with all required dependencies) and it fixed the problem for me. Moreover, if we already have Wine's dbghelp.dll, which have the similar purpose, I guess this dll can be used in ROS too.
I choosed Wine Staging 4.18 version, because:
- There was no any major improvements in dbgeng since version 4.15, so I decided to use the version to which we are currently synced.
- There are no any Staging patches for dbgeng, so Devel and Staging versions of dbgeng are completely identical.
But in order to get it working, I also imported dbgeng.h header from Wine, since it is used as well by Wine's dbgeng.dll, and added some ROS-specific diffs in the dll sources itself, to avoid some comilation problems.
I double-rechecked: after copying compiled dbgeng.dll into system32 and trying to run the app again, the bug is no longer occuring for me. It starts successfully.
Also I checked: this dll is present in Win2k3 out of the box, and its purpose is "Windows Symbolic Debugger Engine".
I already did the importing in my local branch and will open a PR soon. Allow me some time.