When updating VMware Tools the setup constantly bailed out without a decent error. So I decided to un-install the Tools and install them again. Un-installing went smooth but when installing it again I ended up with the error “internal error 2203″. After googling this error the Citrix website gave me the solution, check your tmp and temp environment variables. Indeed both variables pointed out to the CD-Rom player for some strange reason. I changed it to c:\temp and the installation of VMware Tools went smooth…