Decompression Fail Help!

[zaniyah]

how to fix this ? ISDone.dll

An error Occured when unpacking!
Unarc.dll returned error code:-1
ERROR: archive data corrupted (Decompression Fails)

this fail is when im installing it

[Razor12911]

incompatibility between arc.exe and unarc.dll, use the same arc.exe and unarc.dll for compression and decompression.

[Razor12911]

Update yourself first, stable version is 2.4, alpha is v3. Check ultra arc thread

[zaniyah]

Okay thanks!