Suponho que você esteja se referindo a erros como este:
EuvejoesseerroaoacessarumaplicativoantigodoMSAccesscomoAccess2007.
Conseguiimpediraexibiçãodessepop-upalterandoumaconfiguraçãonoTrustCenterdoAccess.Vocêpodeacessá-loclicandonoOrb,depoisnobotão"Access Options", depois em "Trust Center" no lado esquerdo e depois no botão "Trust Center Settings ...".
NajaneladaCentraldeConfiabilidade,cliqueem"Locais Confiáveis" à esquerda. No meu caso, o arquivo que eu estava abrindo estava hospedado em um compartilhamento de rede, então eu tive que marcar "Permitir locais confiáveis na minha rede (não recomendado)" antes de adicionar o compartilhamento com o botão "Adicionar novo local".
Você também pode ter que fazer uma alteração nas configurações da Macro.
Por favor note, no entanto - estes avisos estão lá por uma razão. Alterar as configurações acima pode permitir que código mal-intencionado seja executado em seu computador.
A Microsoft sugere as seguintes diretrizes ao decidir se você deve confiar em um banco de dados específico:
Your own security policy You or your company may have a security policy in place that specifies how to handle Access database files. For example, you might have a very robust backup system in place, and decide that you are willing to trust most database files, unless you have a specific reason not to. Conversely, you may not have a good backup system, and therefore might want to be very cautious when you decide whether to trust a database.
Your goal When Access disables content in a database that you have not trusted, it does not block your access to the data in that database. If you want to review the data in a database and do not want to perform any actions that may be unsafe, such as running an action query or using certain macro actions, you do not need to trust the database. If you are not sure whether an action is considered unsafe, you can try to perform the action while the database content has been blocked by disabled mode. If the action is potentially unsafe, it will be blocked in this circumstance.
The database source If you created the database, or if you know that it came from a source that you trust, you can decide to trust the database. If the database came from a possibly unreliable source, you might want to leave the database untrusted until you can be sure that its content is safe.
The contents of the database file If you cannot make a trust decision based on other information, you might consider thoroughly examining the database contents to see what potentially unsafe content the database might contain. After you conduct a complete check and are sure that the content is safe, you can decide to trust the database.
The security of the location where the database is stored Even if you know that the contents of a database file are safe, if the file is stored in a location that is not fully secure, it is possible that someone might introduce unsafe content into the database. You should be careful when deciding to trust database files that are stored in locations that might not be secure.