TXC fails to start if the project directories are deleted and the Options setting in General tab is checked for "Restore last session on startup".
The project directories were accidentally deleted and couldn't be restored from the Recycle Bin. Subsequent launches of TXC immediately crashed with an application error:
The instruction at "0x5ad71531" referenced memory at "0x00000014". The memory could not be "read".
Click on OK to terminate the program
Attempts to debug with Visual Studio consistently produced the following:
unhandled exception at 0x00421633 in TEXCNTR.EXE: 0xC0000005: Access violation reading location 0x702e6d62.
Uninstalling, reinstalling, and reconfiguration solved the issue. An option to ignore faulty configuration option settings might help with this error (e.g. open normally since the application can't restore the last session when the file and folders are deleted).