> On 18-9-2015 19:50, amigoface@... [firebird-support] wrote:

> > i have problems on using firebird embedded on my asp.net web host .
> >
> > everything work fine locally but on the web i have an exception
>
> > System.Data.Entity.Core.EntityException: The underlying provider failed
> > on Open. ---> FirebirdSql.Data.FirebirdClient.FbException: Can't
> > create directory "C:\ProgramData\firebird\". OS errno is 5
> > ---> FirebirdSql.Data.Common.IscException: Can't create directory
> > "C:\ProgramData\firebird\". OS errno is 5

...

> For reference error number 5 is access denied. Firebird writes the lock
> files for a database into C:\ProgramData\firebird but it isn't able to
> create the folder (you don't have enough rights).

  Correct.

  One addition - process which hosts Firebird (web server, afaiu) should have privileges
to create folder in "C:\ProgramData". Or you can create it by yourself and grant
privileges to create\delete and read\write files at it
("C:\ProgramData\firebird") to the account used for web server.

> To redirect the lock files, you need to set the environment variable
> FIREBIRD_LOCK to the location where you can write.

  Never, never, never do it !!! At least until you 200% sure you really need it !

Regards,
Vlad