to run a DOS Batch (.bat file) from a VB app

I want to run a DOS Batch (.bat file) from a VB app. For this I'm using

Shell() in VB. .BAT files can accept parameters.

When I pass param, as it is, to .bat file, it runs fine. ie. :--

RetVal=Shell("abc.bat xyz",vbHide) 'Here xyz is the param value

But when I pass param using a var which has the value for param, it

doesn't work ! i.e. :--

RetVal=Shell("abc.bat ParamVar",vbHide) 'here ParamVar contains the

value for param

Is there any way (any Function) by which paramete(s) can be passed to a

.bat file using variable(s) as in the second case above ???

Is there any special char to put as prefix with the variable containing

parameter value ????

Basicaly if i am reading this correctly, your mistake is

sending the paramater out as a string rather than a variable string.

try something like this


var="c:\"

retval=shell("dir "+var,0)


where var is your paramater or variable, this must! always be outside the quotes unlike your previous attempt which was somthing like this..

retval=shell("dir var",0)



this is Wrong!


hope this helps!? :)


Christopher