.ini = Filetype = Initialization settings for Windows Programs.
You will find .ini files for QB program, for QBUser names, for Printers, even.
They maintain info, such as opening Full screen or with internal functions positioned left or right; colors and fonts. […]
Resolution for 'Billy49 issue: 'using the QB .ini file' available: Yes.
The Billy49 issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the Billy49 issue yourself by looking for a resolution described in the article. If it is a complex Billy49 issue or you are unable to solve the issue, you may contact us by clicking here or by using other Billy49 support options.
For more information about resolving issues related to Billy49 in Quickbooks/QBO or to get support for the issue 'using the QB .ini file', click the link below: