MATLAB: Do I receive a LINK error when I use the MEX command in MATLAB 7.7 (R2008b)

:errorfatallinklnk1104:localMATLABmexsettingtemptemporarytmp

I have a 64-bit machine and a 64-bit compiler (Microsoft Visual C++ 2008, Professional Edition). The command
mex -setup
locates the compiler and allows me to successfully select this compiler. However, when I execute an example such as:
mex yprime.c
I receive the following error:
 LINK : fatal error LNK1104: cannot open file 'C:\DOCUME~1\WEBERJE\LOCAL' 
   C:\PROGRA~1\MATLAB\R2008B\BIN\MEX.PL: Error: Link of 'yprime.mexw64' failed. 
 !!!:  
 mex -v yprime.c
 failed!

Best Answer

In this particular case, the value of the environment variables TEMP and TMP on the user's machine was set to:
 TEMP=C:\DOCUME~1\WEBERJE\LOCAL SETTINGS\TEMP
 TMP=C:\DOCUME~1\WEBERJE\LOCAL SETTINGS\TEMP
There is a 'space' character between the words 'Local' and 'Settings' and thus the name 'Local Settings' was not returned in a shortened format by the machine to the compiler. So, the temporary directory where the linker was apparently looking for the required libraries was:
'C:\DOCUME~1\WEBERJE\LOCAL'
instead of:
'C:\DOCUME~1\WEBERJE\LOCAL SETTINGS'
This explains the error message that was generated when running the MEX command:
 LINK : fatal error LNK1104: cannot open file 'C:\DOCUME~1\WEBERJE\LOCAL'
To workaround this issue, change the environment variables TEMP and TMP to some directory that does not contain spaces. For example, set the TEMP and TMP environment variables to:
 C:\TEMP
NOTE: Ensure that such a directory exists and has write permissions for all users who are running the MEX command.
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