PixRegister.Register issue

I have a call as follows:

PixTools.PixRegister.Register("myid", strCommonPath, strNativePath);

where strings strCommonPath and strNativePath hold the paths for the common files and drivers.

This has worked fine on multiple machines, but is failing on an IBM tablet PC.

My application fails on this machine at this call.

The directory structure is the same on all machines.

All machines are running Windows XP.

I attempted calling the function and just passing the customer id, then specifying the paths using:

PixTools.PixRegister.PixtranDir = strNativePath;

PixTools.PixRegister.LoadCoreModules(strCommonPath);

The register call worked, but then it crashed at the the two lines above.