Delete invalid folder

[Tom]

Did you try using \ in the filename to escape the special characters?

Something like this:

data _null_;
   length filename $500;
   filename = "/path/to/where/file/is/" || "_Error_Report;GOPTIONS NOACCESSIBLE;;*';*";
   filename = tranwrd(filename,'*','\*');
   filename = tranwrd(filename,';','\;');
   filename = tranwrd(filename,"'","\'");
   rc=filename('myfile',filename);
   if rc then put 'Unable to make fileref. ' rc=;
   else do;
     rc=fdelete('myfile');
     if rc then put 'Unable to delete file. ' rc=;
   end;
run;

Or perhaps since it looks like it might be a folder and not a file you need to make sure there aren't any files inside of it before you can delete the folder.  Also looks like the syntax for FDELETE() when deleting a folder is different than when deleting a file.