Thank you for taking time to look at this.

I do have a user.config file.  I changed all references of OneDrive to be local folders.  I also excluded the Plan-G folders from my antivirus program, and also tried running it as an administrator. No love.

Historically, when I have this type of situation with an application I have later found that another application or a setting in Windows is interfering.  That may be the case here.

Firstly, thank you for your many years providing a great flight planner, and for supporting it like we paid for it. Even your donation page only asks for a small amount (you should increase that figure!).

I repointed My Documents, which requires registry changes if you enabled OneDrive.  Not difficult to do if you're comfortable with Regedit. After making the change and relocating Plan-G to it, the application ran once. I exited and restarted it, and it has not run since the first time. Same symptom of opening briefly and aborting.

I also tried running it from my c:\ root directory and also a USB drive, but no success.

Is there a previous version available that does not have this issue?  I have very simple needs and am OK with not having the latest features. I suspect that other users experiencing this issue would appreciate having the option of down-revving to an earlier version.

I am attempting to start Plan-G, but it aborts while loading.

Windows 11 on a gaming laptop.

What happens:
1. Start Plan-G.exe
2. Splash screen is displayed for a few moments, then disappears.
3. Windows Task Manager indicates that Plan-G is not running, nor are there any related active services.

When Plan-G is started, it creates \documents\Plan-G4 Files and populates it with folders and files.

It does not create \appdata\local\TA-Software.

I found a couple of potential solutions in this forum, but they were unsuccessful. I deleted the data files, but they are simply recreated and the application aborted, just like it does with a fresh install.
I cannot delete the settings in \appdata\local\TA_Software because that folder is not created.

In the log file, there are a couple of entries that may be relevant:

Starting Plan-Gv4 build 4.0.1.262
is Microsoft Windows NT 10.0.22621.0
Plan-G Files folder is: C:\Users\rfede\OneDrive\Rick's Files\Documents\Plan-Gv4 Files
CheckCreateDatabase: C:\Users\rfede\OneDrive\Rick's Files\Documents\Plan-Gv4 Files\Data
.cctor: System.ArgumentException: Format of the initialization string does not conform to specification
starting at index 0.
 ...
 ...
Checking Logbook Schema
Initializing main window
QueryAircraftList: System.ArgumentException: Format of the initialization string does not conform to specification starting at index 0.


Does anyone have any suggestions regarding a solution?

Thank you!