I use C8 Pro and Poser 8.  I added a subfolder to my Poser 8 runtime.  I saved a morphed character to the subfolder.  I then went to C8 Pro and to my surprise, the folder was not in the content box for my Poser 8 runtime.  So, I went to Windows 7 and checked the file structure for my Poser 8 runtime.  Sure enough, the subfolder was not there.  I went back to Poser - it still lists the missing subfolder in the Poser 8 runtime and gives me access to the character's CR2. 

Where oh where could my little file be?

I tried using Poser 8's native library.  I then tried another experiment with Dimension 3D's library script.  Both had the same result. Poser says it created a file subfolder and continues to access it.  The file subfolder cannot be found in Windows 7 or Cararra.

The Poser Forum told me it was a UAC Redirect problem in Windows 7 - how C8 Pro was programmed.  As I say, the content is still accessible in Poser.

Any suggestions?  Or, should I just give up on using Poser content in C8?

Definitely a Windows issue!
I'm assuming the problem stems from your Poser runtimes being located in your Program Files directory. I ran into the same problem; I moved all of my runtimes (except for the default) to My Documents and everything was fine after. The problem I ran into was that stuff that was saved within Poser before the move was still invisible. You can still get at the content; I believe if you Google "Virtual Store" you'll find the answer.

Thanks.  The content in my added runtime works fine, just as you say.  I guess I'll start the laborious task of saving everything in my P8 program runtime to my external runtime.  Could have been a lot worse. 

Thanks to jt411 here at the C8 forum and MagnusGreel in the Poser forum.  With your help, the problem has been resolved.  I post the resolution here (and in the Poser forum) just in case people with a similar problem find this thread.

Resolution - just for peoplewith a similar problem who find this thread by searching the forums.  Once to the Windows User Account Control (UAC) issue, I was able to find resources to help, including searching the Poser forum threads for UAC. 

Essentially, in my case, C8 Pro could not find the Poser content because Windows would not allow Poser 8 to write files to my drive because I had installed Poser 8 in thedefault c:programs directory.  My Windows UAC settings prevent writing to those folders unless the administrator gives permission.  For some reason, Poser wouldn't prompt me to ask for permission.

My choices include but are not limited to

1. uninstall Poser and reinstall it in the My Documents folders where permission to write is not required.

2. only save my own work to runtimes created in the My Documents folders

3. use the Windows control panel to turn off the security settings in the User Account Control, but then I would face greater risk of getting hacked

4. leave everything where it is but run Poser as the administrator

For the moment, I am running Poser as an administrator by right-clicking on my Poser icon and choosing that option.  It has resolved the missing file mystery.

Furthermore, the UAC settings had also prevented me from uncompressing my obz files (in a way that I could find them again).  I have successfully retrieved the obj's now for morphs, etc.

My UAC settings are still set at relatively high security, I can create and find files in the Poser main directory, and Poser seems to be working well with C8 again.

Big thank you to helpful forum people

Quote -

1. use the Windows control panel to turn off the security settings in the User Account Control, but then I would face greater risk of getting hacked

I am running 2 machines at home: One Vista Home Premium and the Other Windows 7 Pro. I have the UAC turned OFF on both machines and I have never been hacked.
Really, you should not have any problems with the UAC OFF all the time. I don't have problems and my Vista machine stays connected to the net all the time.