Error : "Unable to create dir c: " while installation

I am trying to install a vb6 application. Everytime i start installing it, it shows an error

"There was an unexpected problem trying to create or write to logfile "c:\windows\st6unst.000". Error number is 7"

After I click on OK. It resumes installation and after a while gives the error :

"An unexpected setup error has occured"

and asks to quit the installation

The logfile created by the setup shows the foll:
" Unable to create directory C:"

Please help me with this!!

Thanks
SheetalD

Post your code

Moved To Application Deployment

(Thanks for the heads up dee-u :thumb: )

I would suggest you look at your installation package (what are you using?).

If you are trying to create a folder called C: , then you are going to get an error.

That folder already exists...it is the root of your C: drive.