Hi, Has anyone tried accessing a data file from a Virtual PC running XP?  I installed Pervasive v10 and on the Virtual PC settings I have shared my whole D:\ drive.  Everytime I try reading the table, it says 'Invalid table name'.  As a test, I copied all the data files into my Virtual PC C:\ drive and it works.  Is this a Pervasive or a Microsoft issue?  I hope Pervasive did allow accessing file from a virtual PC.

 Thanks in advance

 Cris

Probably a bit of both, although I have no clear view on how this kind of sharing is set up. If it's anything like the old SUBST it will most likely not respond correctly to certain types of I/O calls which would be a problem to lots of other applications as well. In any case it would appear that the shared folder is made to present itself as if it were a local folder, but this mapping may not be available at every level (or to SYSTEM user if you installed PSQL as a service).

Use the network layer. 

Hi Gordon,

Thanks for the quick reply.  What do you mean by "use the network layer"?  There is actually no network as the data resides on the same physical disk, just that the MS Virtual PC is trying to think its a "network".  Basically, the same behavior as being able to do a share on your local PC and then mapping it.

 I will contact Pervasive tomorrow and see what there response on this matter.

Cris

PSQL isn't limited in the VPC environment.  I haven't tried with Virtual PC recently but I do use VMWare on a regular basis and don't have any problems.  

A few questions:
- What tool are you using?
- What's the exact error?
- Are you using a Workgroup Engine or a Server Engine?  If it's the Workgroup engine, are you running it as a Service? 

The whole point of "virtual" is that you should abandon the idea of physical hardware.

Like Mirtheil I'm a regular user of VMware, but Microsofts implementation shouldn't be that much different as I suspect they did a lot of borrowing as usual. By default the virtual PC is more or less independant from the host machine and only uses up disk space and memory. To share additional resources or services between the two it is possible to install linking software such as the VMware tools which allows for drag-and-drop etcetera. I don't have a clue how this works but it has always appeared sluggish to me and I've stopped using it years ago.

VMware offers two methods to create networking for the virtual PC(s). You can either use a host-only virtual network where the host acts as a DHCP server or you can connect to the physical network interface card. Both methods will make the virtual PC just another machine on the network (only at lightning speed) and provide access to the hosts shared folders and printers. Pervasive PSQL will have absolutely no problem running in this environment and it offers a lot better security as well.