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Once the appropriate package has been downloaded, it can be extracted using the SAPCAR utility. The command line to extract an SAP NW RFC package is basically the same on all platforms. The only difference is the name of the SAP NW RFC package. The following is a sample command line to extract the SAP NW RFC package and its resulting output:
 

C:\tmp\sap>sapcar -xvf NWRFC_35-20004568.SAR
SAPCAR: processing archive NWRFC_35-20004568.SAR (version 2.01)
x nwrfcsdk
x nwrfcsdk/bin
x nwrfcsdk/bin/rfcexec.exe
x nwrfcsdk/bin/startrfc.exe
x nwrfcsdk/demo
x nwrfcsdk/demo/companyClient.c
x nwrfcsdk/demo/readme.txt
x nwrfcsdk/demo/rfcexec.cpp
x nwrfcsdk/demo/rfcexec.h
x nwrfcsdk/demo/sapnwrfc.ini
x nwrfcsdk/demo/sflightClient.c
x nwrfcsdk/demo/sso2sample.c
x nwrfcsdk/demo/startrfc.cpp
x nwrfcsdk/demo/startrfc.h
x nwrfcsdk/demo/stfcDeepTableServer.c
x nwrfcsdk/doc
x nwrfcsdk/include
x nwrfcsdk/include/sapdecf.h
x nwrfcsdk/include/sapnwrfc.h
x nwrfcsdk/include/sapuc.h
x nwrfcsdk/include/sapucx.h
x nwrfcsdk/lib
x nwrfcsdk/lib/icudt34.dll
x nwrfcsdk/lib/icuin34.dll
x nwrfcsdk/lib/icuuc34.dll
x nwrfcsdk/lib/libicudecnumber.dll
x nwrfcsdk/lib/libsapucum.dll
x nwrfcsdk/lib/libsapucum.lib
x nwrfcsdk/lib/sapdecfICUlib.lib
x nwrfcsdk/lib/sapnwrfc.dll
x nwrfcsdk/lib/sapnwrfc.lib
x SIGNATURE.SMF
SAPCAR: 32 file(s) extracted

Windows Install

From the extracted SAP NW RFC library, the dll files located in nwrfcsdk/lib/ must be placed in a directory path that is listed in the environment variable Path.

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