FAQ
When starting Hydras 3 I get the error message "Network initialization failed. File or directory does not exist: C:\PDOXUSRS.NET Unknown internal operating system error. Directory: C:\". How can I correct the error?
The reason for this error message is the stricter security requirements starting with Windows Vista. By default it is not allowed to create or modify files in the folder C:\". By default the NET DIR setting, which is required to synchronize multi-user access to the Hydras 3 database, is set to C:\. There are the following possibilities to work around this problem under the current Windows operating systems:
- One possibility is to set the NET DIR to a directory where you have full permissions. To do this, you need to open the BDE Administrator in the Control Panel and on the Configuration page, click on the node: "Configuration | Drivers | Native | Paradox node and select NET DIR" on the right side. By clicking on the "..." button you can now select a directory. For example, you can select the personal directory for the user, for example C:\Users\ABC, where ABC stands for the user's login name. If Hydras 3 is used in a network with several installations, the workspace is usually located on a file server. Typically, in this case the NET DIR is placed in the workspace directory, since all Hydras 3 users need full write access to this directory anyway.
- Create a shortcut to the file Hydras3.exe and add the target as follows "C:\Program Files (x86)\OTT\HYDRAS3\Hydras3.exe" netdir=C:\Users\ABC.
This procedure is also suitable for starting a laptop with a shortcut in a network environment (with shared NET DIR for all computers) and in the field (local use) with another shortcut. It is nevertheless advisable to additionally set up solution A) for the standard case.After adjusting the NET DIR setting, all *.lck files should be deleted manually if necessary. The *.lck files are located in the workspace directory and in the individual station directories below. These files are only created temporarily when a database table is accessed. If there are no such files, this is OK. If all Hydras 3 instances are terminated and such files are there, they should be deleted.
Additionally you should check at this opportunity whether there are files in the station directories, which start with TDB.... These files are created during import, update of virtual sensors and especially during editing. So if all Hydras 3 instances were finished correctly, they should no longer exist. If there are still instances, they should be deleted, otherwise the import of data into these sensors will be blocked
- Run Hydras 3 with administrator rights (right mouse click on Hydras3.exe -> Run as administrator). Windows will then ask if you want to allow this. You must then click on "Allow" accordingly. Probably your IT department will not want to give you the permission permanently. Therefore it is better to use solution 1. or 2.
