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problem in installing the java communications API

 
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Hi,
please help me in this regard.
here Iam facing so many problems while installing my JAVA COMMUNICATIONS API.
Iam following all the instructions given in API.
Even I have done the as follows :
comm.jar ------ it is kept in <jre>\lib\ext folder.
javax.comm.properties ---------- it is kept in <jre>\lib folder.
win32com.dll ----------- it is kept in <jre>\bin folder.
still it is not working and giving the message as follows :
"no serial ports found".
this is the class path iam setting :
.;C:\j2sdk1.4.0_02\lib\dt.jar;C:\j2sdk1.4.0_02\jre\lib\rt.jar;C:\j2sdk1.4.0_02\l
ib\tools.jar;c:\j2sdk1.4.0_02\lib\comm.jar;c:\commapi\samples\blackbox\BlackBox.
jar;C:\j2sdk1.4.0_02\jre\lib;
please let me know the solution to this problem.
gupta
 
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