Bitcoin-abc: Bitcoin ABC Uses same registry entries as Bitcoin core, causes datadir contention, with both running

[PigletBoy]

[xgiovio]

yes. same problem. temporary fix, set the data dir with "C:Program FilesBitcoinbitcoin-qt.exe" -datadir=""

[ohiTuna]

yes. same problem. temporary fix, set the data dir with "C:Program FilesBitcoinbitcoin-qt.exe" -datadir=""

Would advise caution if doing this. I did -datadir="x:mybitcoincoredatadir" and have managed to send bitcoin (not bcc) to unwanted addresses. Will post issue specifics shortly.

[xgiovio]

I did not have any problem

[bacoboy]

Dupe of #32 or vice versa?

[schancel]

32 is a slightly different issue

[GSPP]

Another duplicate of this is https://github.com/Bitcoin-ABC/bitcoin-abc/issues/234.

Needing to run both Core and ABC is a reality for many users in the community. On Windows the only way to do that that seems safe enough is using virtual machines. This is cumbersome to manage and has disk space and memory usage overheads.

Ideally, simply installing the next version of Bitcoin ABC should show a message box "Do you want to migrate your data directory and registry configuration to the recommended locations?". If yes is clicked this would upgrade everything and make the machine clean for a subsequent Core installation.

In my opinion this issue should be prioritized as a matter of usability.

[GSPP]

I just tried a fresh installation. The following paths are used:

C:Program FilesBitcoin-abc
C:Users%User%AppDataRoamingBitcoin
HKEY_LOCAL_MACHINESOFTWAREBitcoin ABC (64-bit)