Trouble loading a Dll with the following error

[MaheshE99ME25]

Hi,

I was trying to Embed a well known dll for Process fluid properties library in my program with memlib:

http://coolprop.org/
dll here: https://sourceforge.net/projects/coolprop/files/CoolProp/6.6.0/shared_library/Windows/64bit/

The program compiles, but when executed i encountered the following errors:
C:...\ ..\coolpropex.nim(12) coolpropex
C:....\coolpropex.nim(1057) Propssi1
C:......\memlib.nim(927) memlookup
C:......\memlib.nim(647) loadLib
C:......\memlib.nim(629) checkedLoadLib
C:......\memlib.nim(601) loadLib
C:......\memlib.nim(472) initialize
SIGSEGV: Illegal storage access. (Attempt to read from nil?)

The code is as below:

import strutils
import memlib
const CoolDll = staticReadDll("CoolProp.dll")
let CoolLib = checkedLoadlib(CoolDll)

The above code executes as expected if i try with sqlite dll.

However, the function can be accessed if accessed with dynlib or link pragma by dynamic linking, i.e., the following works:
import strutils
import memlib
proc Propssi*(Output: cstring; Name1: cstring; Prop1: cdouble; Name2: cstring; Prop2: cdouble; Ref: cstring): cdouble {.cdecl, importc: "PropsSI".}
{.link : "CoolProp.dll".}
let temperature: cdouble = 300.0 # Example temperature in Kelvin
let pressure: cdouble = 1.0 # Example pressure in MPa
let fluid : cstring = "R134a" # Example FLUID NAME
echo $Propssi("H", "T", temperature, "P", pressure, fluid) # Example RESULT

Thank you for taking time to respond and for great set of Windows libraries.