Anton Shabunin's blog: Episodes from Liberty City integrated as GFWL DLCs in GTA IV

Why you may want this

What is needed
HOW-TO
Appendix

Alternative tools

Troubleshooting
References

Since GTA IV v1.0.6.0 it is possible to run TLAD and TBoGT DLCs integrated with main game.

Why you may want this

Pros:

Saves about 10 Gb of space compared to both GTA IV and standalone EFLC installed. GTA IV with integrated DLCs is ~22 Gb
Original uncut radio data compared to 2020 Complete Edition

Cons:

No EFLC-exclusive radio stations. Data for Self-Actualization FM, Vice City FM, Ram Jam FM was physically not there when DLCs were first sold. There are workarounds to add music from these stations to the game (radio downgrader or through Independence FM)

GTA IV v1.0.6.0-1.0.8.0
SDFA-decrypted DLCs with GFWL-compliant subfolder structure. Patches that turn TLAD and TBOGT subfolders from 2020CE or EFLC into 100% MD5-perfect decrypted copy of GFWL DLCs are provided below.
Something to handle custom SecuROM triggers in DLCs (XLivelessAddon or an alternative)

Downgrade the game to 1.0.7.0 - Classic GFWL-compatible downgrade, don’t download DLC integration pack
Unpack patch GTAIVCE_to_GFWL_DLCs_patch.zip (335 Mb) and apply it onto 2020CE folder.
Patch adds original radio data which was removed from 2020CE and creates DLC subfolder.
Install XLivelessAddon or alternative tools from the table in Appendix below

PROPHET release/repack is already 1.0.7.0 or 1.0.8.0 so no action needed. If game was installed from DVD update it to patch 7 or 8.
Unpack patch EFLC_to_GFWL_DLCs_patch.7z (850 Mb) and apply it onto EFLC folder.
Patch takes bulk of original radio data directly from EFLC and creates DLC subfolder.
Move DLC subfolder created by the patch into main GTA IV game folder
Install XLivelessAddon or alternative tools from the table in Appendix below

Tool \ Function	SecuROM handling in main game	Xliveless with DLC support	DLC token activation	Custom SecuROM triggers handling in DLCs	ASI loader
XLivelessAddon.asi (requires ASI loader)	☆		☆	☆
Ultimate ASI Loader as xlive.dll		☆			☆
Catspaw xlive.dll		☆	☆ in 1.0.8.0
GTA IV DLC unlocker (created by catspaw, fixed by DZ87) as dinput8.dll			☆	☆	☆
Third-party ASI loader e.g. the one by Alexander Blade as dsound.dll					☆
Razor1911 2016 crack or stock LaunchGTAIV.exe with SecuROM keygen/emu	☆

Notes

Ultimate ASI Loader (UAL) Xliveless code is based on Catspaw xlive.dll so they are basically interchangeable but Catspaw xlive.dll doesn’t have built-in ASI loader
ZolikaPatch is a fork of XLivelessAddon and in later versions it can do nearly everything XLivelessAddon does including handling SecuROM and direct launch through GTAIV.exe (in conjunction with UAL).
GTA IV DLC Unlocker requires Windows 7 compatibility mode for GTAIV.exe! ASI loader can be enabled in dinput8.ini (enable asi loader = 1)
Old Xliveless has built-in ASI loader but does not support GFWL DLCs so it is not included in this table
You can mix and match tools from the table provided that selected combination of tools covers all needed functions

The provided patches are for clean 2020CE/EFLC with untouched TLAD and TBOGT subfolders. If patch shows division by zero error or rolls back it means TLAD or TBOGT subfolders data was modified.
The patch may run .bat file from %temp% folder to rearrange DLC data to be compatible with GFWL before patching. If antivirus blocks it there will be no data to patch and it will fail.
If custom SecuROM trigger handler is not installed or doesn’t load for some reason you may have one of the following problems

TLaD: Angels in America (the mission hangs after a phone call from Billy), Bad Cop Drop (the FIB buffalo won't chase you), Off Route (the prison bus has a puny hit point amount)
TBoGT: Practice Swing (problem with the "golf" action - can't hit the captive), No. 3 (broken car lift controls), Party's Over (Tony always dies in firefight)
General script-related triggers: the internet cafe PC access glitch and the police computer glitch.