One of my favorite programs to administer is Peachtree Accounting. </sarcasm>

Recently while trying to install Peachtree Quantum 2010 on a computer, I had trouble getting it to use a central server containing the data.
When selecting the mapped network drive, I would get an error:

There is not a valid Peachtree Complete Accounting 2010 centralized company data location on that computer. Either install Peacthree on that computer first or select another computer.

Now, this software has already been installed on twenty other machines and I know it works fine.
I tried rebooting, disabling anti-virus, Windows firewall, etc with no luck.
Here is the fix:
Go back to the install and this time when it asks if your local machine will store the data locally, select ‘Yes’.
Go through the rest of the install, but don’t start Peachtree when the install is complete.
Edit the file C:\WINDOWS\ptx170.ini or c:\windows\ppa170.ini if you use Peachtree Premium Accounts.
Look for the line:

Replace this path with the path to your shared network folder. In my case:

Start Peachtree and you should be on your way! I hope this helps some other lucky Peachtree admin.