Create Assembly With Relative Path

I am new to the wonders of CLR and, as can be expected, have hit a snag. We have multiple environments to run this off of (dev, test, production, etc.) and need to be able to use the same scripts to install them. Here is our basic setup:



Batch script runs a master SQL file using sqlcmd utility
Master SQL file runs secondary SQL files, including the one with the CLR definitions
Secondary SQL file with CLR calls the CREATE ASSEMBSLYI want to be able to call

CREATE ASSEMBLY assemblyName FROM 'myAssembly.dll'

or

CREATE ASSEMBLY assemblyName FROM '..myAssembly.dll'

or something to the effect. However, when I try this, it says I cannot do it or it cannot find the file, even though the file is located in the same folder.

Any ideas?