How to Check if TCP/IP is Installed

Keywords:    TCP/IP

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Question:

How do I check to see if TCP/IP is already loaded on the machine?

Answer:

"Installed" and "Configured" are two different things.

For a configured tcpip To would see if some non 0.0.0.0 ip address is installed for the machine. It can be in one of maybe 6 places.

Try...

	topkey="System\CurrentControlSet\Services\Class\NetTrans\"
	ifRegExistValue(@REGMACHINE,"%topkey%0000[ipaddress]")
	   ipaddr0000=RegQueryValue(@REGMACHINE,"%topkey%0000[ipaddress]")
	endif

The do it for 0001 0002 ... 0006 and if any if the ipaddrxxxx is non-null and non 0.0.0.0 there is a rela good change a configured tcpip connection exits.

For our purposes, since we use the Win95 or NT native TCP/IP stack, and are not concerned about other possible TCP/IP stacks, the simple command:

HasTCPIP = RegExistKey (@REGMACHINE,"System\CurrentControlSet\Services\VxD\MSTCP") 
Terminate(!HasTCPIP, "Error", "NO TCPIP found. Please install or contact your network co-ordinator for assistance.")

works. It has information not about the workstation, but about the DNS's it connects to and a little bit more.

If you have TCP/IP on a workstation (you know from the above if you do), then you can get other information in many way, including;

	Run("WINIPCFG","/ALL /BATCH filename.ext") 

which will write the whole enchalada to a file called filename.ext.

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Article ID:   W13165

Filename:   How to Check if TCP IP is Installed.txt