The IPCheck.exe file you have requested: Tools and Utilities / Miscellaneous / Minecraft IP Connection validater - 36kb is not available. Perhaps try browsing all files for the game Minecraft and upload any files you want to share or are missing. This is the only information we could locate:
This simple program can verify if a connection to a server can be accomplished. By copying the IP address you can simply and quickly see if your favourite server is online! Server ports can be added after a ':'. For example:
25565 is used if no port is set.
It was originally intented for Minecraft, but it works for other servers as well.