LordPE Deluxe is one of the greatest tools for making process dump on memory for along time. It was developed by yoda. Here it is what this tools can do:

+ Dump process from memory and save as file.
+ Dump process module
+ Get Basic information about PE header.
+ Rebuild any PE file (realign, wipe relocation, rebuild import table, etc)


Author website can be reach at http://y0da.cjb.net but it no longer exist I guess. You can try get it from here.