Microcontroller simulation ERROR

[yalect]

Hi;
I would like to ask you that I got simulator ERROR for PIC 16F84 Microcontroller when I want to simulate a circuit with Multisim10 it show me that it's unable to find object file c:\...................... or maybe my project directory and the simulator or compiler unable to compile my C code and it doesn't make any different or change even when I do make mistake to see a process?.

 Thank you.

[yalect]

Sorry,
I made repair for C compiler which is combined with Multisim and it seems work but I found this result after
  Note: Due to path length limitations in the Hi-Tech Linker utilities, the path C:\Users\.................................................etc,
has been mapped to the drive Z: temporarily for this operation

Error: Failed to generate Z:\project1.hex
 I have not Z:\ Drive?!
 
 hoping to reply.

 Thank you.

[xvr]

I have not Z:\ Drive?!

Multisim made it for you:

Note: Due to path length limitations in the Hi-Tech Linker utilities, the path C:\Users\.................................................etc,
has been mapped to the drive Z: temporarily for this operation

but unsuccessfully 

Try to move your project to directory closer to the root of disk

[yalect]

Sorry, where can I find Z:\ Drive and in PC and How can I change it, or maybe moving it closer to the root of disk.

Thank you.

[xvr]

Sorry, where can I find Z:\ Drive

Not Z drive. Use any real one on your PC. I think it will be C: Just move your project in root of your Documents directory
Or right in root of C:\

[ozcar]

Running as a non-admin user? Perhaps some permission problem.

But then, does that message really mean that it was unable to map the folder to Z:, or could it perhaps be caused by some other error that prevents it from creating project1.hex? After all, it says "... has been mapped to the drive Z:"

Disclaimer: I've never used Multisim or anything from Hi Tech.