Does parameter estimation support s function

In my model i have s-function and simcoupler ,when i do parameter estimation it gives an error "DLL_EXT" and by default variabe from workspace should be seen , i am not able to see those workspace variable inside parameter estimation

[Kaustubha Govind]

Please paste exact reproduction steps and error messages.

[Milan]

Hi can u tell me how to attach JPG file

[Kaustubha Govind]

http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers

[Milan]

Hi Kaustubha I am facing some issue cant upload image ,i will write error which i got the error was out of memory when i use PSIM block.

[Kaustubha Govind]

Milan: I thought you original post said that you were seeing an error about a workspace variable not being visible? Are you saying that you are now seeing a different error?