I have an UDF that accesses an external program that, in turn, accepts
inputs and provides outputs only via text file.
Since I have to solve an optimization problem, that UDF has to be called
many times with totally unsatisfactory performances.
In order to speedup data exchange between the UDf and the external program,
I am thinking to setup a ramdrive on the fly when the UDF is called.
I found imdisk (http://www.ltr-data.se/opencode.html/#ImDisk) but I cannot
figure out to call the api from VBA
(http://www.ltr-data.se/library/ImDis...5c2efd549.htm).

I placed imdisk into a folder but I don't understand how to declare the
reference to the ImDiskAPI class on how to instantiate it.

can somebody help?