nsIFileUtilities Interface

 Returns the name of the browser executable program.

 @param aProgramPath - the returned path to the program
 @result             - NS_OK if this operation was successful

void getProgramPath(out constCharPtr aProgramPath)

 Returns the name of the temporary directory.

 @param aTempDirPath - the returned path to the temp directory
 @result             - NS_OK if this operation was successful

void getTempDirPath(out constCharPtr aTempDirPath)

 Returns a unique temporary file name.

 @param aPrefix - a string to prefix to the temporary file name
 @param aLength - the length of the resulting buffer to receive the data
 @param aBuffer - the returned temp file name
 @result        - NS_OK if this operation was successful

void newTempFileName(in string aPrefix, in unsigned long aLength, in charPtr aBuffer)