The bitcoin wallet default placement seems to be in the bitcoin data directory. Is it possible to specify a different placement?

I have some dumpfiles. from 4 bitcoin installation on my W1ndows 10 desktop. I am running the latest version. The dumpfiles  where created with the previous version-

when running the command "importwallet" I get 2 different responces.

"null"  which I interpret as  OK

"Error: std::bad_alloc"  which I do not understand.

I have checked the input files and they  look ok

Suggestions?

Where can I find a good wallet reader that shows how many bitcoins available in a wallet

I have 4 instances of bitcoin installed on my desktop and laptop. I want o consolidate them to one  version.

I have a  "virgin" running and will consolidate the other  3 into it

If I have understod it correctly I have 2 choices.

1. Transfer the funds the convential way
2. Create dumpfiles from the donators and import these files to the new fresh instance.

Option 2 seems to be the simple way and also provides me with backup files but I would like get some cons and pros from this forum.
A related question is if the donator wallets are cleared by the dumpwallet command.

Thanks
Ingvar.
From a cold Stockholm/Sweden

I have had an bitcoin-qt installation when I was on Canaria. I have the wallet on a server. I have another bitcoin-qt installed in Stockholm. I have the wallet from Canaria on my server. Can I import the "Canaria wallet" into my Stockholm Bitcoin installation? If so, how is it done?

Is there a standalone program that can read the content of a wallet?

Is it enough to change the address to the bitcoin exe file and add -rescan as a parameter?

I am running  Bitcoin_qt   018.1.  windows
There is a file named "wallet" but it is not directly readable. How can I see the amount of bitcoins in my wallet?

I am upgrading from 0.14 to 0.18
I have copied the folder containing the 0.14 to a backup folder.
My plan was to just replace the exe file in the current folder.
Downloading  the 0.18 version gives me a  complete installation not just the exe file.

So that was not a valid procedure.
What is the correct procedure to upgrade?
If I understand things correctly I could do a clean install of 0.18 and use the current vallet
What is the vallet? the complete data folder?

My current release is 0.14.2 on Windows

It is some time since I synced it.

I am creating a new directory for new version and also for data.

Now I have two options.

  - Sync the current version
  - Copy program and data to new location 
  -  install new version on the new location
OR
  - copy the current version and data to the new locations
  - Install new version on new location
  - Perform sync

What would be the best choice or does it not matter?

The "default" configuration when running bitcoin on a computer seems to be to store all data in the same folder and pass the data directory that hold both blockchain and the wallet
when starting bitcoin Core.

I travel between Stockholm and Las Palmas so I would like to store the blockchain part on my file server. I do not want to store my wallet on the file server.

Is it possible to have different directories for the wallet and the blockchain data?

I have the bitcoin program (0.9.2.1  Swedish version) on my C-drive and my data on a "QNAP" server running 2 mirror disks. The server is on my home IP network.
Unfortunately I had a disruption on the connection to the server.

When I start The program I get the following message (In Swedish actually so I translate it )

"Bad or no genesis block found. Wrong data directory on network?"

How to proceed??